V1NF High Quality Titanium HSS Large Step Cone Drill Bit Hole Cutter Tool 10-45

Features:
Material: 4241 high-speed steel (suitable for use in the workpiece， hardness of 25 degrees such as carbon steel， plate， insulation board， PVC board， wood， sheet thickness below 5MM)
Surface treatment: Ti
Shank: Triangle round handle
Step drill 10-45MM (8 steps: 10，15， 20， 25， 30， 35， 40， 45MM)

1 x Step drill bit