High Speed Steel Drill Bit Set 13pcs Constant Spiral Hardness Titanium Coated
13pcs HSS High Steel Drill Bit Set Hexagon Shank Drill Bit 1.5mm-6.5mm. The drill bit is made of high-speed steel and coated with nitrate for longer service life. 6.35 mm (1/4"). 13 Drill bit. Material: high speed steel.