- 100% brand new and high quality            
 - Drill 28 Hole Sizes            
 - This compact Set Replaces 28 Individual Drill Bits            
 - Automatically Deburrs Holes as you Drill            
 - Two-flute Design Gives You Faster, Smoother Cutting            
 - Titanium Nitride Coating for Cooler Running            
 - Quick-change 1/4" Hex Shank            
 - High Speed Steel for Long Life            
 - 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            
 

Specification            
 - 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"            
 - Weight :0.11kg