4pcs 1.55mm C3/K10 Tungsten Carbide Precision Straight Shank Twist Drill Bit 12mmx12mmx2000mm 400mm: 433x29x0

400mm: 433x29x0

Chrome plated finish for rust and corrosion resistance

48-inch (L*W*H)

6 x 13mm / 1

): 31mm x 33mm / 1

4pcs 1.55mm C3/K10 Tungsten Carbide Precision Straight Shank Twist Drill Bit 12mmx12mmx2000mm 400mm: 433x29x0The 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