1 /16 inch End Mill Bits, Square Carbide End Mill with 4 Flutes,ALTiN Coated, HRC 55, Professional Router Bits for CNC & DIYes to Milling Alloy Steels /Hardened Steels (5Pcs)

Features

• [Usage]Our Tungsten Carbide + Cobalt end mills offer durability and efficiency. The 35-degree helix angle reduces resistance and heat, extending tool life. Designed for cutting materials below HRC 55, including stainless steel, prehardened steel, alloy steel, carbon steel, and cast iron.
• [Precision Tolerance]With a cutting edge tolerance of 0 to -0.01mm , these bits ensure high precision, part interchangeability, and machining efficiency.
• [ALTiN Coating]The Aluminum Titanium Nitride (ALTiN) coating provides exceptional wear resistance and heat tolerance. With 4500HV hardness and 1200C heat resistance, it maintains sharpness in high-speed cutting.
• [Usage Guidelines]Adjust cutting depth, speed, and feed rate for best results. Increase machine speed when cutting aluminum or aluminum alloys for optimal performance,we recommend RPM: 14000-18000, IPM: 45-224.
• [Customer Support]We highly value your feedback to better meet your machining needs. For any product concerns, contact us on Amazon, and well provide a best solution within 24 hours.