4pcs 0.95mm C3/K10 Tungsten Carbide Precision Straight Shank Twist Drill Bit Standoff Column Spacers 12 x Sanding Sponge

12 x Sanding Sponge

Can be used in circuits

easy to install

67"(ID*OD)

4pcs 0.95mm C3/K10 Tungsten Carbide Precision Straight Shank Twist Drill Bit Standoff Column Spacers 12 x Sanding SpongeThe solid carbide drill bit is made of a micro grain tungsten cobalt alloy with an average cobalt content of 6%. It has high hardness (HRC92), wear resistance, heat resistance, high bending strength, and resistance to stick. Provides faster cutting speeds than other substrates and is harder but more brittle. Large and spiral chip space design for fast and clean chip removal. Sharp cutting edge provides smooth cutting and no glitches. With good milling