3pcs Steel Step Drill Set 12/20/32mm Large HSS Steel Step Cone Drill Titanium Bit Hole Cutter Drill Bit Set

Material: HSS Steel

Titanium coated to reduce friction and heat high speed steel

Quick change 1/4" shank or round shank

Set included: 1 x 15 step bit (4 - 32mm), 1 x 9 step bit (4 - 20mm), 1 x 13 step bit (4 - 12mm)

It is very suitable for using to cut holes in a variety of materials including steel, brass, wood, plastic, etc .Ideal for Thin Metals Steel, Aluminium Copper, Fibreglass, and PVC Etc.

Allows Precision Drilling of 15 Different Size Holes