18th Jul 2026, 08:30 PM

Brush Research GBD40012 FLEX-HONE, 4 inch (101mm) Diameter, 120 Grit, Silicon Carbide, For Mild Steel, Stainless Steel Cast Iron and Softer Ferrous Materials

Name: Brush Research GBD40012 FLEX-HONE,4 inch 101mm Diameter,120 Grit,Silicon Carbide,For Mild Steel,Stainless Steel Cast Iron and Softer Ferrous Materials
Brand: Flex-Hone
Price: 68.53 USD
Availability: InStock
Rating: 9.8 (76 reviews)

Price may vary by location, shipping cost, and availability.

Lowest ever

$68.53

Buy @ amazon.com

Highest: $74.49

Average: $70.52

Lowest: $68.53

Price History Graph

Offer Price Prices

Lowest: -

Average: -

Highest: -

Price History Information

You can check the price history of Brush Research GBD40012 FLEX-HONE, 4 inch (101mm) Diameter, 120 Grit, Silicon Carbide, For Mild Steel, Stainless Steel Cast Iron and Softer Ferrous Materials here. This product's current Price in USA is $68.53. The average and highest prices are $70.52 and $74.49 respectively.

Lowest Ever Price	$68.53
18th Jul 2026
Average Price	$70.52
Based on 17 days price tracking
Highest Price	$74.49
4th Jul 2026

Price History of All Variants of Brush Research GBD40012 FLEX-HONE 4 inch 101mm...

Brush Research GBD40024 FLEX-HONE 434 101mm Diameter

Offer Price: $76.77

Brush Research GBD40024 FLEX-HONE®, 4" (101mm) Diameter, 240 Grit, Silicon Carbide, For Mild Steel, Stainless Steel Cast Iron and Softer Ferrous Materials

Get Deal

Brush Research GBD40012 FLEX-HONE 434 101mm Diameter

Offer Price: $68.53

Brush Research GBD40012 FLEX-HONE®, 4" (101mm) Diameter, 120 Grit, Silicon Carbide, For Mild Steel, Stainless Steel Cast Iron and Softer Ferrous Materials

Get Deal

Brush Research GBD712400 Flex-Hone 7-1234 191mm Diameter

Offer Price: $338.99

Brush Research GBD712400 Flex-Hone®, 7-1/2" (191mm) Diameter, 400 Grit, Silicon Carbide, for Mild Steel, Stainless Steel Cast Iron and Softer Ferrous Materials

Get Deal

Brush Research GBD31424 FLEX-HONE 3-1434 83mm Diameter

Offer Price: $60.87

Brush Research GBD31424 FLEX-HONE®, 3-1/4" (83mm) Diameter, 240 Grit, Silicon Carbide, For Mild Steel, Stainless Steel Cast Iron and Softer Ferrous Materials

Get Deal

Brush Research GBD40018 FLEX-HONE 434 101mm Diameter

Offer Price: $71.81

Brush Research GBD40018 FLEX-HONE®, 4" (101mm) Diameter, 180 Grit, Silicon Carbide, For Mild Steel, Stainless Steel Cast Iron and Softer Ferrous Materials

Get Deal

Brush Research GBD71280 Flex-Hone 7-1234 191mm Diameter

Brush Research GBD71280 Flex-Hone®, 7-1/2" (191mm) Diameter, 80 Grit, Silicon Carbide, for Mild Steel, Stainless Steel Cast Iron and Softer Ferrous Materials

Get Deal

Brush Research GBD50012 FLEX-HONE 534 127mm Diameter

Brush Research GBD50012 FLEX-HONE®, 5" (127mm) Diameter, 120 Grit, Silicon Carbide, For Mild Steel, Stainless Steel Cast Iron and Softer Ferrous Materials

Get Deal

Brush Research GBD51224 FLEX-HONE 5-1234 140mm Diameter

Offer Price: $112.89

Brush Research GBD51224 FLEX-HONE®, 5-1/2" (140mm) Diameter, 240 Grit, Silicon Carbide, For Mild Steel, Stainless Steel Cast Iron and Softer Ferrous Materials

Get Deal

Brush Research GBD700600 Flex-Hone 734 178mm Diameter

Offer Price: $513.38

Brush Research GBD700600 Flex-Hone®, 7" (178mm) Diameter, 600 Grit, Silicon Carbide, for Mild Steel, Stainless Steel Cast Iron and Softer Ferrous Materials

Get Deal

Brush Research GBD800800 Flex-Hone 834 203mm Diameter

Offer Price: $366.80

Brush Research GBD800800 Flex-Hone®, 8" (203mm) Diameter, 800 Grit, Silicon Carbide, for Mild Steel, Stainless Steel Cast Iron and Softer Ferrous Materials

Get Deal

Brush Research GBD31224 FLEX-HONE 3-1234 89mm Diameter

Offer Price: $68.84

Brush Research GBD31224 FLEX-HONE®, 3-1/2" (89mm) Diameter, 240 Grit, Silicon Carbide, For Mild Steel, Stainless Steel Cast Iron and Softer Ferrous Materials

Get Deal

Brush Research GBD700800 Flex-Hone 734 178mm Diameter

Offer Price: $583.85

Brush Research GBD700800 Flex-Hone®, 7" (178mm) Diameter, 800 Grit, Silicon Carbide, for Mild Steel, Stainless Steel Cast Iron and Softer Ferrous Materials

Get Deal

Brush Research GBD30018 FLEX-HONE 334 76mm Diameter

Offer Price: $31.50

Brush Research GBD30018 FLEX-HONE®, 3" (76mm) Diameter, 180 Grit, Silicon Carbide, For Mild Steel, Stainless Steel Cast Iron and Softer Ferrous Materials

Get Deal

Brush Research GBD71218 FLEX-HONE 7-1234 190mm Diameter

Offer Price: $140.80

Brush Research GBD71218 FLEX-HONE®, 7-1/2" (190mm) Diameter, 180 Grit, Silicon Carbide, For Mild Steel, Stainless Steel Cast Iron and Softer Ferrous Materials

Get Deal

Brush Research GBD33460 Flex-Hone 3-3434 95mm Diameter

Brush Research GBD33460 Flex-Hone®, 3-3/4" (95mm) Diameter, 60 Grit, Silicon Carbide, for Mild Steel, Stainless Steel Cast Iron and Softer Ferrous Materials

Get Deal

Brush Research GBD41232 FLEX-HONE 4-1234 114mm Diameter

Offer Price: $121.97

Brush Research GBD41232 FLEX-HONE®, 4-1/2" (114mm) Diameter, 320 Grit, Silicon Carbide, For Mild Steel, Stainless Steel Cast Iron and Softer Ferrous Materials

Get Deal

Brush Research GBD41440 Flex-Hone 4-1434 108mm Diameter

Brush Research GBD41440 Flex-Hone®, 4-1/4" (108mm) Diameter, 40 Grit, Silicon Carbide, for Mild Steel, Stainless Steel Cast Iron and Softer Ferrous Materials

Get Deal

Brush Research GBD41212 FLEX-HONE 4-1234 114mm Diameter

Offer Price: $87.29

Brush Research GBD41212 FLEX-HONE®, 4-1/2" (114mm) Diameter, 120 Grit, Silicon Carbide, For Mild Steel, Stainless Steel Cast Iron and Softer Ferrous Materials

Get Deal

Brush Research GBD60024 FLEX-HONE 634 152mm Diameter

Offer Price: $105.00

Brush Research GBD60024 FLEX-HONE®, 6" (152mm) Diameter, 240 Grit, Silicon Carbide, For Mild Steel, Stainless Steel Cast Iron and Softer Ferrous Materials

Get Deal

Brush Research GBD30012 FLEX-HONE 334 76mm Diameter

Offer Price: $67.75

Brush Research GBD30012 FLEX-HONE®, 3" (76mm) Diameter, 120 Grit, Silicon Carbide, For Mild Steel, Stainless Steel Cast Iron and Softer Ferrous Materials

Get Deal

Brush Research GBD30032 Flex-Hone 334 76mm Diameter

Offer Price: $95.89

Brush Research GBD30032 Flex-Hone®, 3" (76mm) Diameter, 320 Grit, Silicon Carbide, for Mild Steel, Stainless Steel Cast Iron and Softer Ferrous Materials

Get Deal

Brush Research GBD31232 Flex-Hone 3-1234 89mm Diameter

Offer Price: $116.24

Brush Research GBD31232 Flex-Hone®, 3-1/2" (89mm) Diameter, 320 Grit, Silicon Carbide, for Mild Steel, Stainless Steel Cast Iron and Softer Ferrous Materials

Get Deal

Brush Research GBD51212 FLEX-HONE 5-1234 140mm Diameter

Brush Research GBD51212 FLEX-HONE®, 5-1/2" (140mm) Diameter, 120 Grit, Silicon Carbide, For Mild Steel, Stainless Steel Cast Iron and Softer Ferrous Materials

Get Deal

Offer Price: $205.99

Brush Research GBD41440 Flex-Hone®, 4-1/4" (108mm) Diameter, 40 Grit, Silicon Carbide, for Mild Steel, Stainless Steel Cast Iron and Softer Ferrous Materials

Get Deal

Brush Research GBD80060 Flex-Hone 834 203mm Diameter

Offer Price: $255.34

Brush Research GBD80060 Flex-Hone®, 8" (203mm) Diameter, 60 Grit, Silicon Carbide, for Mild Steel, Stainless Steel Cast Iron and Softer Ferrous Materials

Get Deal

Brush Research GBD41424 FLEX-HONE 4-1434 108mm Diameter

Offer Price: $82.27

Brush Research GBD41424 FLEX-HONE®, 4-1/4" (108mm) Diameter, 240 Grit, Silicon Carbide, For Mild Steel, Stainless Steel Cast Iron and Softer Ferrous Materials

Get Deal

Brush Research GBD300400 Flex-Hone 334 76mm Diameter

Offer Price: $144.92

Brush Research GBD300400 Flex-Hone®, 3" (76mm) Diameter, 400 Grit, Silicon Carbide, for Mild Steel, Stainless Steel Cast Iron and Softer Ferrous Materials

Get Deal

Brush Research GBD40080 Flex-Hone 434 102mm Diameter

Offer Price: $129.99

Brush Research GBD40080 Flex-Hone®, 4" (102mm) Diameter, 80 Grit, Silicon Carbide, for Mild Steel, Stainless Steel Cast Iron and Softer Ferrous Materials

Get Deal

Brush Research GBD70018 FLEX-HONE 734 178mm Diameter

Offer Price: $155.70

Brush Research GBD70018 FLEX-HONE®, 7" (178mm) Diameter, 180 Grit, Silicon Carbide, For Mild Steel, Stainless Steel Cast Iron and Softer Ferrous Materials

Get Deal

Brush Research GBD33418 FLEX-HONE 3-3434 95mm Diameter

Offer Price: $59.19

Brush Research GBD33418 FLEX-HONE®, 3-3/4" (95mm) Diameter, 180 Grit, Silicon Carbide, For Mild Steel, Stainless Steel Cast Iron and Softer Ferrous Materials

Get Deal

Brush Research GBD50018 FLEX-HONE 534 127mm Diameter

Offer Price: $91.47

Brush Research GBD50018 FLEX-HONE®, 5" (127mm) Diameter, 180 Grit, Silicon Carbide, For Mild Steel, Stainless Steel Cast Iron and Softer Ferrous Materials

Get Deal

Brush Research GBD41218 FLEX-HONE 4-1234 114mm Diameter

Offer Price: $76.49

Brush Research GBD41218 FLEX-HONE®, 4-1/2" (114mm) Diameter, 180 Grit, Silicon Carbide, For Mild Steel, Stainless Steel Cast Iron and Softer Ferrous Materials

Get Deal

Brush Research GBD61212 FLEX-HONE 6-1234 165mm Diameter

Brush Research GBD61212 FLEX-HONE®, 6-1/2" (165mm) Diameter, 120 Grit, Silicon Carbide, For Mild Steel, Stainless Steel Cast Iron and Softer Ferrous Materials

Get Deal

Brush Research GBD70012 FLEX-HONE 734 178mm Diameter

Offer Price: $155.70

Brush Research GBD70012 FLEX-HONE®, 7" (178mm) Diameter, 120 Grit, Silicon Carbide, For Mild Steel, Stainless Steel Cast Iron and Softer Ferrous Materials

Get Deal

Brush Research GBD80032 Flex-Hone 834 203mm Diameter

Offer Price: $322.99

Brush Research GBD80032 Flex-Hone®, 8" (203mm) Diameter, 320 Grit, Silicon Carbide, for Mild Steel, Stainless Steel Cast Iron and Softer Ferrous Materials

Get Deal

Brush Research GBD31412 FLEX-HONE 3-1434 83mm Diameter

Offer Price: $67.55

Brush Research GBD31412 FLEX-HONE®, 3-1/4" (83mm) Diameter, 120 Grit, Silicon Carbide, For Mild Steel, Stainless Steel Cast Iron and Softer Ferrous Materials

Get Deal

Brush Research GBD414400 Flex-Hone 4-1434 108mm Diameter

Offer Price: $185.99

Brush Research GBD414400 Flex-Hone®, 4-1/4" (108mm) Diameter, 400 Grit, Silicon Carbide, for Mild Steel, Stainless Steel Cast Iron and Softer Ferrous Materials

Get Deal

Brush Research GBD60060 Flex-Hone 634 152mm Diameter

Brush Research GBD60060 Flex-Hone®, 6" (152mm) Diameter, 60 Grit, Silicon Carbide, for Mild Steel, Stainless Steel Cast Iron and Softer Ferrous Materials

Get Deal

Offer Price: $233.58

Brush Research GBD71280 Flex-Hone®, 7-1/2" (191mm) Diameter, 80 Grit, Silicon Carbide, for Mild Steel, Stainless Steel Cast Iron and Softer Ferrous Materials

Get Deal

Brush Research GBD400400 Flex-Hone 434 102mm Diameter

Offer Price: $149.80

Brush Research GBD400400 Flex-Hone®, 4" (102mm) Diameter, 400 Grit, Silicon Carbide, for Mild Steel, Stainless Steel Cast Iron and Softer Ferrous Materials

Get Deal

Offer Price: $89.79

Brush Research GBD50012 FLEX-HONE®, 5" (127mm) Diameter, 120 Grit, Silicon Carbide, For Mild Steel, Stainless Steel Cast Iron and Softer Ferrous Materials

Get Deal

Brush Research GBD50012 FLEX-HONE®, 5" (127mm) Diameter, 120 Grit, Silicon Carbide, For Mild Steel, Stainless Steel Cast Iron and Softer Ferrous Materials

Get Deal

Brush Research GBD61232 Flex-Hone 6-1234 165mm Diameter

Offer Price: $241.24

Brush Research GBD61232 Flex-Hone®, 6-1/2" (165mm) Diameter, 320 Grit, Silicon Carbide, for Mild Steel, Stainless Steel Cast Iron and Softer Ferrous Materials

Get Deal

Brush Research GBD31460 Flex-Hone 3-1434 83mm Diameter

Brush Research GBD31460 Flex-Hone®, 3-1/4" (83mm) Diameter, 60 Grit, Silicon Carbide, for Mild Steel, Stainless Steel Cast Iron and Softer Ferrous Materials

Get Deal

Brush Research GBD51232 Flex-Hone 5-1234 140mm Diameter

Offer Price: $159.33

Brush Research GBD51232 Flex-Hone®, 5-1/2" (140mm) Diameter, 320 Grit, Silicon Carbide, for Mild Steel, Stainless Steel Cast Iron and Softer Ferrous Materials

Get Deal

Brush Research GBD33424 FLEX-HONE 3-3434 95mm Diameter

Offer Price: $68.39

Brush Research GBD33424 FLEX-HONE®, 3-3/4" (95mm) Diameter, 240 Grit, Silicon Carbide, For Mild Steel, Stainless Steel Cast Iron and Softer Ferrous Materials

Get Deal

Brush Research GBD50024 FLEX-HONE 534 127mm Diameter

Offer Price: $99.55

Brush Research GBD50024 FLEX-HONE®, 5" (127mm) Diameter, 240 Grit, Silicon Carbide, For Mild Steel, Stainless Steel Cast Iron and Softer Ferrous Materials

Get Deal

Brush Research GBD33480 Flex-Hone 3-3434 95mm Diameter

Offer Price: $105.45

Brush Research GBD33480 Flex-Hone®, 3-3/4" (95mm) Diameter, 80 Grit, Silicon Carbide, for Mild Steel, Stainless Steel Cast Iron and Softer Ferrous Materials

Get Deal

Brush Research GBD41432 Flex-Hone 4-1434 108mm Diameter

Offer Price: $128.56

Brush Research GBD41432 Flex-Hone®, 4-1/4" (108mm) Diameter, 320 Grit, Silicon Carbide, for Mild Steel, Stainless Steel Cast Iron and Softer Ferrous Materials

Get Deal

Brush Research GBD80040 Flex-Hone 834 203mm Diameter

Offer Price: $496.18

Brush Research GBD80040 Flex-Hone®, 8" (203mm) Diameter, 40 Grit, Silicon Carbide, for Mild Steel, Stainless Steel Cast Iron and Softer Ferrous Materials

Get Deal

Brush Research GBD512400 Flex-Hone 5-1234 140mm Diameter

Offer Price: $170.51

Brush Research GBD512400 Flex-Hone®, 5-1/2" (140mm) Diameter, 400 Grit, Silicon Carbide, for Mild Steel, Stainless Steel Cast Iron and Softer Ferrous Materials

Get Deal

Brush Research GBD512600 Flex-Hone 5-1234 140mm Diameter

Offer Price: $458.60

Brush Research GBD512600 Flex-Hone®, 5-1/2" (140mm) Diameter, 600 Grit, Silicon Carbide, for Mild Steel, Stainless Steel Cast Iron and Softer Ferrous Materials

Get Deal

Brush Research GBD71280 Flex-Hone®, 7-1/2" (191mm) Diameter, 80 Grit, Silicon Carbide, for Mild Steel, Stainless Steel Cast Iron and Softer Ferrous Materials

Get Deal

Brush Research GBD33412 FLEX-HONE 3-3434 95mm Diameter

Offer Price: $71.65

Brush Research GBD33412 FLEX-HONE®, 3-3/4" (95mm) Diameter, 120 Grit, Silicon Carbide, For Mild Steel, Stainless Steel Cast Iron and Softer Ferrous Materials

Get Deal

Brush Research GBD33432 Flex-Hone 3-3434 95mm Diameter

Offer Price: $105.24

Brush Research GBD33432 Flex-Hone®, 3-3/4" (95mm) Diameter, 320 Grit, Silicon Carbide, for Mild Steel, Stainless Steel Cast Iron and Softer Ferrous Materials

Get Deal

Brush Research GBD31460 Flex-Hone®, 3-1/4" (83mm) Diameter, 60 Grit, Silicon Carbide, for Mild Steel, Stainless Steel Cast Iron and Softer Ferrous Materials

Get Deal

Brush Research GBD500400 Flex-Hone 534 127mm Diameter

Offer Price: $171.55

Brush Research GBD500400 Flex-Hone®, 5" (127mm) Diameter, 400 Grit, Silicon Carbide, for Mild Steel, Stainless Steel Cast Iron and Softer Ferrous Materials

Get Deal

Brush Research GBD500600 Flex-Hone 534 127mm Diameter

Offer Price: $184.85

Brush Research GBD500600 Flex-Hone®, 5" (127mm) Diameter, 600 Grit, Silicon Carbide, for Mild Steel, Stainless Steel Cast Iron and Softer Ferrous Materials

Get Deal

Brush Research GBD60060 Flex-Hone®, 6" (152mm) Diameter, 60 Grit, Silicon Carbide, for Mild Steel, Stainless Steel Cast Iron and Softer Ferrous Materials

Get Deal

Brush Research GBD31260 Flex-Hone 3-1234 89mm Diameter

Offer Price: $60.37

Brush Research GBD31260 Flex-Hone®, 3-1/2" (89mm) Diameter, 60 Grit, Silicon Carbide, for Mild Steel, Stainless Steel Cast Iron and Softer Ferrous Materials

Get Deal

Brush Research GBD31480 Flex-Hone 3-1434 83mm Diameter

Offer Price: $93.19

Brush Research GBD31480 Flex-Hone®, 3-1/4" (83mm) Diameter, 80 Grit, Silicon Carbide, for Mild Steel, Stainless Steel Cast Iron and Softer Ferrous Materials

Get Deal

Brush Research GBD41412 FLEX-HONE 4-1434 108mm Diameter

Offer Price: $73.49

Brush Research GBD41412 FLEX-HONE®, 4-1/4" (108mm) Diameter, 120 Grit, Silicon Carbide, For Mild Steel, Stainless Steel Cast Iron and Softer Ferrous Materials

Get Deal

Brush Research GBD600600 Flex-Hone 634 152mm Diameter

Offer Price: $526.98

Brush Research GBD600600 Flex-Hone®, 6" (152mm) Diameter, 600 Grit, Silicon Carbide, for Mild Steel, Stainless Steel Cast Iron and Softer Ferrous Materials

Get Deal

Brush Research GBD314800 Flex-Hone 3-1434 83mm Diameter

Brush Research GBD314800 Flex-Hone®, 3-1/4" (83mm) Diameter, 800 Grit, Silicon Carbide, for Mild Steel, Stainless Steel Cast Iron and Softer Ferrous Materials

Get Deal

Brush Research GBD500800 Flex-Hone 534 127mm Diameter

Offer Price: $233.99

Brush Research GBD500800 Flex-Hone®, 5" (127mm) Diameter, 800 Grit, Silicon Carbide, for Mild Steel, Stainless Steel Cast Iron and Softer Ferrous Materials

Get Deal

Brush Research GBD40060 Flex-Hone 434 102mm Diameter

Offer Price: $129.07

Brush Research GBD40060 Flex-Hone®, 4" (102mm) Diameter, 60 Grit, Silicon Carbide, for Mild Steel, Stainless Steel Cast Iron and Softer Ferrous Materials

Get Deal

Brush Research GBD60018 FLEX-HONE 634152mm Diameter 180

Offer Price: $128.89

Brush Research GBD60018 FLEX-HONE®, 6"(152mm) Diameter, 180 Grit, Silicon Carbide, For Mild Steel, Stainless Steel Cast Iron and Softer Ferrous Materials

Get Deal

Offer Price: $305.56

Brush Research GBD60060 Flex-Hone®, 6" (152mm) Diameter, 60 Grit, Silicon Carbide, for Mild Steel, Stainless Steel Cast Iron and Softer Ferrous Materials

Get Deal

Brush Research GBD70024 FLEX-HONE 734 178mm Diameter

Offer Price: $275.50

Brush Research GBD70024 FLEX-HONE®, 7" (178mm) Diameter, 240 Grit, Silicon Carbide, For Mild Steel, Stainless Steel Cast Iron and Softer Ferrous Materials

Get Deal

Brush Research GBD31218 FLEX-HONE 3-1234 89mm Diameter

Offer Price: $64.31

Brush Research GBD31218 FLEX-HONE®, 3-1/2" (89mm) Diameter, 180 Grit, Silicon Carbide, For Mild Steel, Stainless Steel Cast Iron and Softer Ferrous Materials

Get Deal

Brush Research GBD600400 Flex-Hone 634 152mm Diameter

Offer Price: $259.71

Brush Research GBD600400 Flex-Hone®, 6" (152mm) Diameter, 400 Grit, Silicon Carbide, for Mild Steel, Stainless Steel Cast Iron and Softer Ferrous Materials

Get Deal

Brush Research GBD41418 FLEX-HONE 4-1434 108mm Diameter

Offer Price: $78.41

Brush Research GBD41418 FLEX-HONE®, 4-1/4" (108mm) Diameter, 180 Grit, Silicon Carbide, For Mild Steel, Stainless Steel Cast Iron and Softer Ferrous Materials

Get Deal

Brush Research GBD412400 Flex-Hone 4-1234 114mm Diameter

Offer Price: $202.99

Brush Research GBD412400 Flex-Hone®, 4-1/2" (114mm) Diameter, 400 Grit, Silicon Carbide, for Mild Steel, Stainless Steel Cast Iron and Softer Ferrous Materials

Get Deal

Offer Price: $124.99

Brush Research GBD41440 Flex-Hone®, 4-1/4" (108mm) Diameter, 40 Grit, Silicon Carbide, for Mild Steel, Stainless Steel Cast Iron and Softer Ferrous Materials

Get Deal

Brush Research GBD31418 FLEX-HONE 3-3434 83mm Diameter

Offer Price: $60.12

Brush Research GBD31418 FLEX-HONE®, 3-3/4" (83mm) Diameter, 180 Grit, Silicon Carbide, For Mild Steel, Stainless Steel Cast Iron and Softer Ferrous Materials

Get Deal

Brush Research GBD60012 FLEX-HONE 634152mm Diameter 120

Offer Price: $143.78

Brush Research GBD60012 FLEX-HONE, 6"(152mm) Diameter, 120 Grit, Silicon Carbide, For Mild Steel, Stainless Steel Cast Iron and Softer Ferrous Materials

Get Deal

Brush Research GBD60032 Flex-Hone 634 152mm Diameter

Offer Price: $193.99

Brush Research GBD60032 Flex-Hone®, 6" (152mm) Diameter, 320 Grit, Silicon Carbide, for Mild Steel, Stainless Steel Cast Iron and Softer Ferrous Materials

Get Deal

Brush Research GBD80024 FLEX-HONE 834 203mm Diameter

Offer Price: $162.58

Brush Research GBD80024 FLEX-HONE®, 8" (203mm) Diameter, 240 Grit, Silicon Carbide, For Mild Steel, Stainless Steel Cast Iron and Softer Ferrous Materials

Get Deal

Brush Research GBD412600 Flex-Hone 4-1234 114mm Diameter

Offer Price: $197.99

Brush Research GBD412600 Flex-Hone®, 4-1/2" (114mm) Diameter, 600 Grit, Silicon Carbide, for Mild Steel, Stainless Steel Cast Iron and Softer Ferrous Materials

Get Deal

Brush Research GBD41240 Flex-Hone 4-1234 114mm Diameter

Brush Research GBD41240 Flex-Hone®, 4-1/2" (114mm) Diameter, 40 Grit, Silicon Carbide, for Mild Steel, Stainless Steel Cast Iron and Softer Ferrous Materials

Get Deal

Brush Research GBD71224 FLEX-HONE 7-1234 190mm Diameter

Offer Price: $165.94

Brush Research GBD71224 FLEX-HONE®, 7-1/2" (190mm) Diameter, 240 Grit, Silicon Carbide, For Mild Steel, Stainless Steel Cast Iron and Softer Ferrous Materials

Get Deal

Offer Price: $134.99

Brush Research GBD41240 Flex-Hone®, 4-1/2" (114mm) Diameter, 40 Grit, Silicon Carbide, for Mild Steel, Stainless Steel Cast Iron and Softer Ferrous Materials

Get Deal

Brush Research GBD71232 Flex-Hone 7-1234 191mm Diameter

Offer Price: $289.20

Brush Research GBD71232 Flex-Hone®, 7-1/2" (191mm) Diameter, 320 Grit, Silicon Carbide, for Mild Steel, Stainless Steel Cast Iron and Softer Ferrous Materials

Get Deal

Offer Price: $93.63

Brush Research GBD31460 Flex-Hone®, 3-1/4" (83mm) Diameter, 60 Grit, Silicon Carbide, for Mild Steel, Stainless Steel Cast Iron and Softer Ferrous Materials

Get Deal

Brush Research GBD31212 FLEX-HONE 3-1234 89mm Diameter

Offer Price: $56.10

Brush Research GBD31212 FLEX-HONE®, 3-1/2" (89mm) Diameter, 120 Grit, Silicon Carbide, For Mild Steel, Stainless Steel Cast Iron and Softer Ferrous Materials

Get Deal

Brush Research GBD71212 FLEX-HONE 7-1234 190mm Diameter

Offer Price: $140.24

Brush Research GBD71212 FLEX-HONE®, 7-1/2" (190mm) Diameter, 120 Grit, Silicon Carbide, For Mild Steel, Stainless Steel Cast Iron and Softer Ferrous Materials

Get Deal

Offer Price: $105.44

Brush Research GBD51212 FLEX-HONE®, 5-1/2" (140mm) Diameter, 120 Grit, Silicon Carbide, For Mild Steel, Stainless Steel Cast Iron and Softer Ferrous Materials

Get Deal

Brush Research GBD31432 Flex-Hone 3-1434 83mm Diameter

Offer Price: $118.78

Brush Research GBD31432 Flex-Hone®, 3-1/4" (83mm) Diameter, 320 Grit, Silicon Carbide, for Mild Steel, Stainless Steel Cast Iron and Softer Ferrous Materials

Get Deal

Brush Research GBD41440 Flex-Hone®, 4-1/4" (108mm) Diameter, 40 Grit, Silicon Carbide, for Mild Steel, Stainless Steel Cast Iron and Softer Ferrous Materials

Get Deal

Brush Research GBD70012 FLEX-HONE®, 7" (178mm) Diameter, 120 Grit, Silicon Carbide, For Mild Steel, Stainless Steel Cast Iron and Softer Ferrous Materials

Get Deal

Brush Research GBD41224 FLEX-HONE 4-1234 114mm Diameter

Offer Price: $82.04

Brush Research GBD41224 FLEX-HONE®, 4-1/2" (114mm) Diameter, 240 Grit, Silicon Carbide, For Mild Steel, Stainless Steel Cast Iron and Softer Ferrous Materials

Get Deal

Brush Research GBD30024 FLEX-HONE 334 76mm Diameter

Offer Price: $39.95

Brush Research GBD30024 FLEX-HONE®, 3" (76mm) Diameter, 240 Grit, Silicon Carbide, For Mild Steel, Stainless Steel Cast Iron and Softer Ferrous Materials

Get Deal

Brush Research GBD61212 FLEX-HONE®, 6-1/2" (165mm) Diameter, 120 Grit, Silicon Carbide, For Mild Steel, Stainless Steel Cast Iron and Softer Ferrous Materials

Get Deal

Brush Research GBD80012 FLEX-HONE 834 203mm Diameter

Offer Price: $220.04

Brush Research GBD80012 FLEX-HONE®, 8" (203mm) Diameter, 120 Grit, Silicon Carbide, For Mild Steel, Stainless Steel Cast Iron and Softer Ferrous Materials

Get Deal

Brush Research GBD612800 Flex-Hone 6-1234 165mm Diameter

Offer Price: $496.52

Brush Research GBD612800 Flex-Hone®, 6-1/2" (165mm) Diameter, 800 Grit, Silicon Carbide, for Mild Steel, Stainless Steel Cast Iron and Softer Ferrous Materials

Get Deal

Brush Research GBD612400 Flex-Hone 6-1234 165mm Diameter

Offer Price: $279.85

Brush Research GBD612400 Flex-Hone®, 6-1/2" (165mm) Diameter, 400 Grit, Silicon Carbide, for Mild Steel, Stainless Steel Cast Iron and Softer Ferrous Materials

Get Deal

Brush Research GBD70012 FLEX-HONE®, 7" (178mm) Diameter, 120 Grit, Silicon Carbide, For Mild Steel, Stainless Steel Cast Iron and Softer Ferrous Materials

Get Deal

Brush Research GBD61218 FLEX-HONE 6-1234 165mm Diameter

Offer Price: $123.99

Brush Research GBD61218 FLEX-HONE®, 6-1/2" (165mm) Diameter, 180 Grit, Silicon Carbide, For Mild Steel, Stainless Steel Cast Iron and Softer Ferrous Materials

Get Deal

Brush Research GBD41440 Flex-Hone®, 4-1/4" (108mm) Diameter, 40 Grit, Silicon Carbide, for Mild Steel, Stainless Steel Cast Iron and Softer Ferrous Materials

Get Deal

Brush Research GBD400600 Flex-Hone 434 102mm Diameter

Offer Price: $143.24

Brush Research GBD400600 Flex-Hone®, 4" (102mm) Diameter, 600 Grit, Silicon Carbide, for Mild Steel, Stainless Steel Cast Iron and Softer Ferrous Materials

Get Deal

Brush Research GBD40060 Flex-Hone®, 4" (102mm) Diameter, 60 Grit, Silicon Carbide, for Mild Steel, Stainless Steel Cast Iron and Softer Ferrous Materials

Get Deal

Brush Research GBD50032 Flex-Hone 534 127mm Diameter

Offer Price: $203.99

Brush Research GBD50032 Flex-Hone®, 5" (127mm) Diameter, 320 Grit, Silicon Carbide, for Mild Steel, Stainless Steel Cast Iron and Softer Ferrous Materials

Get Deal

Brush Research GBD51218 FLEX-HONE 5-1234 140mm Diameter

Offer Price: $104.86

Brush Research GBD51218 FLEX-HONE®, 5-1/2" (140mm) Diameter, 180 Grit, Silicon Carbide, For Mild Steel, Stainless Steel Cast Iron and Softer Ferrous Materials

Get Deal

Brush Research GBD80018 FLEX-HONE 834 203mm Diameter

Offer Price: $161.67

Brush Research GBD80018 FLEX-HONE®, 8" (203mm) Diameter, 180 Grit, Silicon Carbide, For Mild Steel, Stainless Steel Cast Iron and Softer Ferrous Materials

Get Deal

Offer Price: $252.03

Brush Research GBD61212 FLEX-HONE®, 6-1/2" (165mm) Diameter, 120 Grit, Silicon Carbide, For Mild Steel, Stainless Steel Cast Iron and Softer Ferrous Materials

Get Deal

Brush Research GBD60060 Flex-Hone®, 6" (152mm) Diameter, 60 Grit, Silicon Carbide, for Mild Steel, Stainless Steel Cast Iron and Softer Ferrous Materials

Get Deal

Brush Research GBD80080 Flex-Hone 834 203mm Diameter

Offer Price: $198.47

Brush Research GBD80080 Flex-Hone®, 8" (203mm) Diameter, 80 Grit, Silicon Carbide, for Mild Steel, Stainless Steel Cast Iron and Softer Ferrous Materials

Get Deal

Brush Research GBD41240 Flex-Hone®, 4-1/2" (114mm) Diameter, 40 Grit, Silicon Carbide, for Mild Steel, Stainless Steel Cast Iron and Softer Ferrous Materials

Get Deal

Brush Research GBD61224 FLEX-HONE 6-1234 165mm Diameter

Offer Price: $268.67

Brush Research GBD61224 FLEX-HONE®, 6-1/2" (165mm) Diameter, 240 Grit, Silicon Carbide, For Mild Steel, Stainless Steel Cast Iron and Softer Ferrous Materials

Get Deal

Offer Price: $119.99

Brush Research GBD33460 Flex-Hone®, 3-3/4" (95mm) Diameter, 60 Grit, Silicon Carbide, for Mild Steel, Stainless Steel Cast Iron and Softer Ferrous Materials

Get Deal

Brush Research GBD40032 Flex-Hone 434 102mm Diameter

Offer Price: $110.55

Brush Research GBD40032 Flex-Hone®, 4" (102mm) Diameter, 320 Grit, Silicon Carbide, for Mild Steel, Stainless Steel Cast Iron and Softer Ferrous Materials

Get Deal

Current Price in USA

Price	$68.53

Recent Price Drops on Brush Research GBD40012 FLEX-HONE, 4 inch (101mm) Diameter, 120 Grit, Silicon Carbide, For Mild Steel, Stainless Steel Cast Iron and Softer Ferrous Materials

Price Drop 17th Jul 2026

$74.49 → $68.53

8% drop

Product Information

Details

Product Name	Brush Research GBD40012 FLEX-HONE, 4 inch (101mm) Diameter, 120 Grit, Silicon Carbide, For Mild Steel, Stainless Steel Cast Iron and Softer Ferrous Materials
Store Product Code	B002XUL1LM
Store Name	amazon.com
Brand	Flex-Hone
Rating	9.8 / 10
Category	Flex Hones
Product Manufacturer	Brush Research Manufacturing
Dimensions	13.75"L x 4.75"W

Features

[QUALITY]-Proudly Made in the USA. Quality and consistency you can count on made from the inventors and makers of the tool.
[DESIGN]-The FLEX-HONE is intentionally manufactured oversized. This engineered oversize creates the optimal amount of pressure inside the cylinder wall allowing the tool to be self-centering, self-aligning and self-compensating for wear and easy use.
[FINISHING BENEFITS]-Offered in a wide variety of grits to achieve specific finishing tolerances as well as a beautiful crosshatch finish. Ideal for rebuilding hydraulic and pneumatic cylinders, engine and brake cylinders, valve guides, pumps, compressors and more.
[CROSSHOLE DEBURRING]-Accomplish finishing and deburring simultaneously in a single setup. Can be used in virtually any rotating spindle from a hand drill, drill press or CNC equipment.
[120 GRIT SILICON CARBIDE ABRASIVE]-Excellent on mild steel, stainless steel, cast iron and other softer ferrous materials. Typically achieves a finish of 35 - 50 Microinch (.9 - 1.4 Micrometer).
[WHAT'S INCLUDED]-1 Each of a GBD Heavy Duty FLEX-HONE: 4.000" (102mm) Bore Diameter, 6" Abrasive Part Length, 0.310" Shank Diameter, 13.5" Overall Length. For Use on Bore Diameters Between 3.751"-4.000". PLEASE NOTE: ORDER BY BORE SIZE.

Images

Image of Brush Research GBD40012 FLEX-HONE, 4 inch (101mm) Diameter, 120 Grit, Silicon Carbide, For Mild Steel, Stainless Steel Cast Iron and Softer Ferrous Materials

Rating and Reviews

9.8 Based on 76 reviews

Brush Research GBD40012 FLEX-HONE 4 inch 101mm has 9.8 rating out of 10. This average rating is consist of 76 individual ratings. You can rate this product at product review page.