Compact storage pouch keeps bits together and helps protect them from damage when not in use
These Step Drill Bits are ideal for variety of materials from metal, plastic, fiberglass to wood
Replacement 28 Drill: The kit includes three standard SAE stepper bits that can replace 28 separate drill bits
Titanium Step ,high speed steel: classic high speed steel, titanium alloy coating, durable, suitable for plastic, aluminum, copper, stainless steel and many other types of sheet metal drilling
Set Incudes: Bit#1:6 Step Bit from 3/16" to 1/2" ; Bit#2:9 Step Bit from 1/4" to 3/4" ; Bit#3:13 Step Bit from 1/8" to 1/2"