ITEM NAME:6Pcs High Speed Steel Straight Shank Twist Drill Bit Set M3 M4 M5 M6 M8 M10 Description: 90-degree CNC straight shank centering drill bits set positioning and chamfering tool High temperature resistance and wear resistance TiN coating can strengthen the surface hardness of the drill bit, improve the processing precision and the surface quality of the workpiece; resistant to chipping and thermal shock resistance The friction coefficient with the iron-based material is small, the anti-bonding performance is good, the friction and cutting temperature are effectively reduced, the material of the cutting steel and the easy-to-stick knife is reduced, the surface roughness of the processing is reduced, and the cutting speed is improved Material: High Speed Steel Color: Silver Size Chart: Size: M3 M4 M5 M6 M8 M10 Package Includes: 6 Pieces Drill Bits.Size: M3 M4 M5 M6 M8 M10. TiN coating can strengthen the surface hardness of the drill bit, improve the processing precision and the surface quality of the workpiece; resistant to chipping and thermal shock resistance.
