IRWIN 10225 Unibit General Purpose Step Drill Bit Set Style:High Speed Steel Pump is oil-lubricated for cooler

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

Cuts up to 984 Ft

it cleans and lubricates the carburetor and injectors and causes the fuel to burn more thoroughly for increased power and less fuel consumption

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 3/4 x 7/8 inch

IRWIN 10225 Unibit General Purpose Step Drill Bit Set Style:High Speed Steel Pump is oil-lubricated for coolerFeatures: 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