Hss 3 pc step drill bit set

Hss Steel Large Step Cone Drill Titanium Bit Set Hole Cutter, which is made from high quality Hss steel, and with the Titanium coated to reduce friction and heat
It is suitable for using to cut holes in a variety of materials including steel, brass, wood, plastic, et

Features:
1 X step drill 4-12mm
1 X step drill 4-20mm
1 X step drill 4-32mm

Maximum rpm:

4-12mm : 1000-450
4-20mm: 800-250

What's in the box
1X 3pc step drill set