10pcs 1/8" Shank 1.8mm Tungsten Carbide Blue Coated End Mill CNC Router Bits Soft Tubing Inner Diameter: 170mm / 4

Inner Diameter: 170mm / 4

and it will restore hardness after cooling

Adopts spray and air jet cooling to improve the use effect of the milling cutter

and other home and industrial applications

generators

10pcs 1/8" Shank 1.8mm Tungsten Carbide Blue Coated End Mill CNC Router Bits Soft Tubing Inner Diameter: 170mm / 4Made of premium tungsten carbide, the router bits have excellent hardness, sufficient bending strength, wear resistance, durability, and good milling and cutting performance to ensure high working efficiency. Carbide ensures the bits can withstand the high speed and high stress requirements of CNC machining. The blue coating on end mills increases hardness, reduces friction and heat, improves lubricity, and protects bits from rust and corrosion.