IRWIN 10225 Unibit General Purpose Step Drill Bit Set Style:High Speed Steel and 3/4 x 7/8 inch

and 3/4 x 7/8 inch

an internal counterbalance system that is engineered into the tool for more effective vibration reduction

Cuts up to 984 Ft

3 microns and larger) for improved dust collection and OSHA table 1 compliance

Pump is oil-lubricated for cooler running temperatures and reduced wear

IRWIN 10225 Unibit General Purpose Step Drill Bit Set Style:High Speed Steel and 3/4 x 7/8 inchFeatures: Single flute cutting edges for greater control through steps 3 flatted shanks prevents slipping in drill chuck Non skid self starting tips eliminate skidding and the need for center punching Sizes clearly laser etched to make precise drilling easy Set includes HSS #1, 2, 4, and 21 size step drills Details: The IRWIN Unibit High Speed Steel Step Drill Set features single flute cutting edges for greater control and more precise drilling. Three