This is a 10 piece set of NACO carbide drill bits 0.8~3.175mm used for PCB, CNC, plastic, copper, stainless steel and other hardware processing.
Features:
Material: Carbide (tungsten steel)
Shank Diameter: 3.175mm
Overall Length: 38mm
NACO: Nanocomposite hardness 38-41 GPa
Drill bit diameters supplied 0.8, 1.0, 1.2, 1.4 ,1.6, 1.8, 2.0, 2.2, 2.4, 3.175mm