sourcing map 29pcs Titanium Twist Drill Bit Set 1/16"- 1/2" Drilling Dia High Speed Steel Drills for Hardened Metal, Stainless Steel, Cast Iron, Wood, Plastic with Case

Titanium coated twist drill bits are commonly used in drilling applications because of their strength, durability, and resistance to wear and tear. These drill bits have a titanium nitride coating that increases their hardness and reduces friction between the bit and the material being drilled.
The twist drill bit is made of high-speed steel 4241, and the surface is plated with titanium. The ...