Step Drill Bit, Spiral DoubleFluted, 316Inch to 78Inch, VACO

Dual Spiral Flutes on VACO Step Drill Bits help pull the step bit through material for faster cutting The Titanium Nitride coating extends the life of the cutting edge Convenient to use with an impact driver and drill, the 14Inch hex shank provides a firm, positive grip Available in five step bit sizes with commonly used hole sizes for steel up to 16 gauge, plastic, aluminum, and wood 2 spiral flutes pull the bit through for faster cutting Longer bit life with heat dissipating titanium nitride coating 14Inch hex shank for firm grip in impact drivers and drills For use on steel up to 16 gauge, wood, plastic, and aluminum 12 hole sizes