3pcs HSS step drill Steel Large Step Cone mini drill Titanium Metal Bit cut Tools Set Hole Cutter 1/4" Hex Shank
Drill 28 Hole Sizes
This compact Set Replaces 28 Individual Drill Bits
Two-flute Design Gives You Faster, Smoother Cutting
Quick-change 1/4" Hex Shank
These Step Drill Bits are ideal for variety of materials from metal, plastic, fiberglass to wood
They also help to enlarge existing holes
The two flute design tips made the penetration faster without chipping
New Titanium Coated Step Drill Bit that covers 28 sizes
Sizes of the 3 Step Drill Bits:
6 Step Bit from 3/16" to 1/2"
9 Step Bit from 1/4" to 3/4"
13 Step Bit from 1/8" to 1/2
1X 3pc Quick-change Hex Shank larger Titanium Coated Step Drill Bit Set 3-12/4-12/4-20 mm