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

The IC1A comes with an abrasive blade for areas where the blade may come in contact with concrete or other hard surfaces which would destroy a saw-tooth blade

and you can store the hex wrench in the adjustable top handle so you wont be fumbling around for it

A deep pocket carry clip keeps the CPK-325A well concealed

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