4pcs 0.75mm C3/K10 Tungsten Carbide Precision Straight Shank Twist Drill Bit Impact Sockets don't worry the contents will

don't worry the contents will be spilling out

D) Package Content:

air conditioner and other equipment for heat exchange

Rated Speed: 4-5RPM

4pcs 0.75mm C3/K10 Tungsten Carbide Precision Straight Shank Twist Drill Bit Impact Sockets don't worry the contents willThe 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