sourcing map 4pcs Solid Carbide Drill Bits 1.75mm C3/K10 Tungsten Carbide Precision Mini Micro Straight Shank Twist Drill Bit for Stainless Steel Metal Plastic Wood

The 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 edg...