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Brush Research GB41812 FLEX-HONE 4-1 8 inch
12th Jul 2026, 10:45 AM

Brush Research GB41812 FLEX-HONE, 4-1 /8 inch (105 mm) Diameter, 120 Grit, Silicon Carbide, For Mild Steel, Stainless Steel, Cast Iron and Softer Ferrous Materials

Price may vary by location, shipping cost, and availability.
Lowest ever
$49.88

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Highest: $49.88
Average: $49.88
Lowest: $49.88

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Price History Information

You can check the price history of Brush Research GB41812 FLEX-HONE, 4-1 /8 inch (105 mm) 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 $49.88. The average and highest prices are $49.88 and $49.88 respectively.

Lowest Ever Price $49.88
12th Jul 2026
Average Price $49.88
Based on 10 days price tracking
Highest Price $49.88
12th Jul 2026

Price History of All Variants of Brush Research GB41812 FLEX-HONE 4-1 8 inch...

Brush Research GB41824 FLEX-HONE 4-1834 105mm Diameter
Offer Price: $87.30

Brush Research GB41824 FLEX-HONE®, 4-1/8" (105mm) Diameter, 240 Grit, Silicon Carbide, For Mild Steel, Stainless Steel, Cast Iron and Softer Ferrous Materials

Get Deal

Brush Research GB31232 Flex-Hone 3-1234 89mm Diameter
Offer Price: $67.54

Brush Research GB31232 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 GB312800 Flex-Hone 3-1234 89mm Diameter
Offer Price: $122.99

Brush Research GB312800 Flex-Hone®, 3-1/2" (89mm) Diameter, 800 Grit, Silicon Carbide, for Mild Steel, Stainless Steel, Cast Iron and Softer Ferrous Materials

Get Deal

Brush Research GB31460 Flex-Hone 3-1434 83mm Diameter
Offer Price: $65.69

Brush Research GB31460 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 GB33412 FLEX-HONE 3-3434 95mm Diameter

Brush Research GB33412 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 GB45812 FLEX-HONE 4-5834 117mm Diameter

Brush Research GB45812 FLEX-HONE®, 4-5/8" (117mm) Diameter, 120 Grit, Silicon Carbide, For Mild Steel, Stainless Steel, Cast Iron and Softer Ferrous Materials

Get Deal

Brush Research GB31212 FLEX-HONE 3-1234 89mm Diameter
Offer Price: $38.72

Brush Research GB31212 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 GB31432 Flex-Hone 3-1434 83mm Diameter
Offer Price: $64.43

Brush Research GB31432 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 GB31424 FLEX-HONE 3-1434 83mm Diameter
Offer Price: $40.97

Brush Research GB31424 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 GB45812 FLEX-HONE 4-5834 117mm Diameter

Brush Research GB45812 FLEX-HONE®, 4-5/8" (117mm) Diameter, 120 Grit, Silicon Carbide, For Mild Steel, Stainless Steel, Cast Iron and Softer Ferrous Materials

Get Deal

Brush Research GB45818 FLEX-HONE 4-5834 117mm Diameter
Offer Price: $53.69

Brush Research GB45818 FLEX-HONE®, 4-5/8" (117mm) Diameter, 180 Grit, Silicon Carbide, For Mild Steel, Stainless Steel, Cast Iron and Softer Ferrous Materials

Get Deal

Brush Research GB31280 Flex-Hone 3-1234 89mm Diameter
Offer Price: $83.79

Brush Research GB31280 Flex-Hone®, 3-1/2" (89mm) Diameter, 80 Grit, Silicon Carbide, for Mild Steel, Stainless Steel, Cast Iron and Softer Ferrous Materials

Get Deal

Brush Research GB33412 FLEX-HONE 3-3434 95mm Diameter
Offer Price: $43.25

Brush Research GB33412 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 GB33432 Flex-Hone 3-3434 95mm Diameter
Offer Price: $72.29

Brush Research GB33432 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 GB33418 FLEX-HONE 3-3434 95mm Diameter
Offer Price: $41.68

Brush Research GB33418 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 GB314400 Flex-Hone 3-1434 83mm Diameter
Offer Price: $98.55

Brush Research GB314400 Flex-Hone®, 3-1/4" (83mm) Diameter, 400 Grit, Silicon Carbide, for Mild Steel, Stainless Steel, Cast Iron and Softer Ferrous Materials

Get Deal

Brush Research GB41812 FLEX-HONE 4-1834 105 mm
Offer Price: $49.88

Brush Research GB41812 FLEX-HONE®, 4-1/8" (105 mm) Diameter, 120 Grit, Silicon Carbide, For Mild Steel, Stainless Steel, Cast Iron and Softer Ferrous Materials

Get Deal

Brush Research GB418400 Flex-Hone 4-1834 105mm Diameter
Offer Price: $123.99

Brush Research GB418400 Flex-Hone®, 4-1/8" (105mm) Diameter, 400 Grit, Silicon Carbide, for Mild Steel, Stainless Steel, Cast Iron and Softer Ferrous Materials

Get Deal

Brush Research GB458400 Flex-Hone 4-5834 117mm Diameter
Offer Price: $187.99

Brush Research GB458400 Flex-Hone®, 4-5/8" (117mm) Diameter, 400 Grit, Silicon Carbide, for Mild Steel, Stainless Steel, Cast Iron and Softer Ferrous Materials

Get Deal

Brush Research GB31412 FLEX-HONE 3-1434 83mm Diameter
Offer Price: $35.20

Brush Research GB31412 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 GB41818 FLEX-HONE 4-1834 105mm Diameter
Offer Price: $52.89

Brush Research GB41818 FLEX-HONE®, 4-1/8" (105mm) Diameter, 180 Grit, Silicon Carbide, For Mild Steel, Stainless Steel, Cast Iron and Softer Ferrous Materials

Get Deal

Brush Research GB45812 FLEX-HONE 4-5834 117mm Diameter
Offer Price: $57.02

Brush Research GB45812 FLEX-HONE®, 4-5/8" (117mm) Diameter, 120 Grit, Silicon Carbide, For Mild Steel, Stainless Steel, Cast Iron and Softer Ferrous Materials

Get Deal

Brush Research GB31224 FLEX-HONE 3-1234 89mm Diameter
Offer Price: $47.08

Brush Research GB31224 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 GB31260 Flex-Hone 3-1234 89mm Diameter
Offer Price: $77.39

Brush Research GB31260 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 GB314600 Flex-Hone 3-1434 83mm Diameter
Offer Price: $95.05

Brush Research GB314600 Flex-Hone®, 3-1/4" (83mm) Diameter, 600 Grit, Silicon Carbide, for Mild Steel, Stainless Steel, Cast Iron and Softer Ferrous Materials

Get Deal

Brush Research GB314800 Flex-Hone 3-1434 83mm Diameter
Offer Price: $98.55

Brush Research GB314800 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 GB334400 Flex-Hone 3-3434 95mm Diameter
Offer Price: $104.50

Brush Research GB334400 Flex-Hone®, 3-3/4" (95mm) Diameter, 400 Grit, Silicon Carbide, for Mild Steel, Stainless Steel, Cast Iron and Softer Ferrous Materials

Get Deal

Brush Research GB334800 Flex-Hone 3-3434 95mm Diameter
Offer Price: $124.99

Brush Research GB334800 Flex-Hone®, 3-3/4" (95mm) Diameter, 800 Grit, Silicon Carbide, for Mild Steel, Stainless Steel, Cast Iron and Softer Ferrous Materials

Get Deal

Brush Research GB41860 Flex-Hone 4-1834 105mm Diameter

Brush Research GB41860 Flex-Hone®, 4-1/8" (105mm) Diameter, 60 Grit, Silicon Carbide, for Mild Steel, Stainless Steel, Cast Iron and Softer Ferrous Materials

Get Deal

Brush Research GB334600 Flex-Hone 3-3434 95mm Diameter

Brush Research GB334600 Flex-Hone®, 3-3/4" (95mm) Diameter, 600 Grit, Silicon Carbide, for Mild Steel, Stainless Steel, Cast Iron and Softer Ferrous Materials

Get Deal

Brush Research GB45824 FLEX-HONE 4-5834 117mm Diameter
Offer Price: $56.37

Brush Research GB45824 FLEX-HONE®, 4-5/8" (117mm) Diameter, 240 Grit, Silicon Carbide, For Mild Steel, Stainless Steel, Cast Iron and Softer Ferrous Materials

Get Deal

Brush Research GB31218 FLEX-HONE 3-1234 89mm Diameter
Offer Price: $48.93

Brush Research GB31218 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 GB41880 Flex-Hone 4-1834 105mm Diameter
Offer Price: $138.68

Brush Research GB41880 Flex-Hone®, 4-1/8" (105mm) Diameter, 80 Grit, Silicon Carbide, for Mild Steel, Stainless Steel, Cast Iron and Softer Ferrous Materials

Get Deal

Brush Research GB45832 Flex-Hone 4-5834 117mm Diameter
Offer Price: $117.40

Brush Research GB45832 Flex-Hone®, 4-5/8" (117mm) Diameter, 320 Grit, Silicon Carbide, for Mild Steel, Stainless Steel, Cast Iron and Softer Ferrous Materials

Get Deal

Brush Research GB31418 FLEX-HONE 3-1434 83mm Diameter
Offer Price: $39.79

Brush Research GB31418 FLEX-HONE®, 3-1/4" (83mm) Diameter, 180 Grit, Silicon Carbide, For Mild Steel, Stainless Steel, Cast Iron and Softer Ferrous Materials

Get Deal

Brush Research GB41832 Flex-Hone 4-1834 105mm Diameter
Offer Price: $82.12

Brush Research GB41832 Flex-Hone®, 4-1/8" (105mm) Diameter, 320 Grit, Silicon Carbide, for Mild Steel, Stainless Steel, Cast Iron and Softer Ferrous Materials

Get Deal

Brush Research GB334600 Flex-Hone 3-3434 95mm Diameter
Offer Price: $117.99

Brush Research GB334600 Flex-Hone®, 3-3/4" (95mm) Diameter, 600 Grit, Silicon Carbide, for Mild Steel, Stainless Steel, Cast Iron and Softer Ferrous Materials

Get Deal

Brush Research GB312400 Flex-Hone 3-1234 89mm Diameter
Offer Price: $102.05

Brush Research GB312400 Flex-Hone®, 3-1/2" (89mm) Diameter, 400 Grit, Silicon Carbide, for Mild Steel, Stainless Steel, Cast Iron and Softer Ferrous Materials

Get Deal

Brush Research GB41860 Flex-Hone 4-1834 105mm Diameter
Offer Price: $76.67

Brush Research GB41860 Flex-Hone®, 4-1/8" (105mm) Diameter, 60 Grit, Silicon Carbide, for Mild Steel, Stainless Steel, Cast Iron and Softer Ferrous Materials

Get Deal

Brush Research GB312600 Flex-Hone 3-1234 89mm Diameter
Offer Price: $83.50

Brush Research GB312600 Flex-Hone®, 3-1/2" (89mm) Diameter, 600 Grit, Silicon Carbide, for Mild Steel, Stainless Steel, Cast Iron and Softer Ferrous Materials

Get Deal

Brush Research GB33424 FLEX-HONE 3-3434 95mm Diameter
Offer Price: $57.12

Brush Research GB33424 FLEX-HONE®, 3-3/4" (95mm) Diameter, 240 Grit, Silicon Carbide, For Mild Steel, Stainless Steel, Cast Iron and Softer Ferrous Materials

Get Deal

Current Price in USA

Price $49.88

Product Information

Details

Product Name Brush Research GB41812 FLEX-HONE, 4-1 /8 inch (105 mm) Diameter, 120 Grit, Silicon Carbide, For Mild Steel, Stainless Steel, Cast Iron and Softer Ferrous Materials
Store Product Code B002XUL1GC
Store Name amazon.com
Brand Flex-Hone
Rating 9.4 / 10
Category Flex Hones
Product Manufacturer Brush Research Manufacturing

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 GB Standard Duty FLEX-HONE: 4.125" (105mm) Bore Diameter, 4" Abrasive Part Length, 0.310" Shank Diameter, 13.5" Overall Length. For Use on Bore Diameters Between 3.751"-4.125". PLEASE NOTE: ORDER BY BORE SIZE.

Images

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Image of Brush Research GB41812 FLEX-HONE, 4-1 /8 inch (105 mm) Diameter, 120 Grit, Silicon Carbide, For Mild Steel, Stainless Steel, Cast Iron and Softer Ferrous Materials
Image of Brush Research GB41812 FLEX-HONE, 4-1 /8 inch (105 mm) Diameter, 120 Grit, Silicon Carbide, For Mild Steel, Stainless Steel, Cast Iron and Softer Ferrous Materials
Image of Brush Research GB41812 FLEX-HONE, 4-1 /8 inch (105 mm) Diameter, 120 Grit, Silicon Carbide, For Mild Steel, Stainless Steel, Cast Iron and Softer Ferrous Materials
Image of Brush Research GB41812 FLEX-HONE, 4-1 /8 inch (105 mm) Diameter, 120 Grit, Silicon Carbide, For Mild Steel, Stainless Steel, Cast Iron and Softer Ferrous Materials
Image of Brush Research GB41812 FLEX-HONE, 4-1 /8 inch (105 mm) Diameter, 120 Grit, Silicon Carbide, For Mild Steel, Stainless Steel, Cast Iron and Softer Ferrous Materials
Image of Brush Research GB41812 FLEX-HONE, 4-1 /8 inch (105 mm) Diameter, 120 Grit, Silicon Carbide, For Mild Steel, Stainless Steel, Cast Iron and Softer Ferrous Materials
Image of Brush Research GB41812 FLEX-HONE, 4-1 /8 inch (105 mm) Diameter, 120 Grit, Silicon Carbide, For Mild Steel, Stainless Steel, Cast Iron and Softer Ferrous Materials

Rating and Reviews

9.4 Based on 158 reviews

Brush Research GB41812 FLEX-HONE 4-1 8 inch has 9.4 rating out of 10. This average rating is consist of 158 individual ratings. You can rate this product at product review page.

* Predictions is created on based of past prices and trends, it does not guarantee that it will happen. These are just prediction for theoretical information only.
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