Irwin 1877793 Metal Countersinks Drill Bit Set, Black Oxide, 1/4" Shank, 5-Piece FREEOVER35 Use to isolate a tankless

Use to isolate a tankless water heater for service and are required in most installations

Helps prevent cracking

5 MHP (maximum horsepower)

"Safety Link"  mechanism that prevents abuse

InSinkErator® Sink Flange is designed to support your InSinkErator® manufactured disposer

Irwin 1877793 Metal Countersinks Drill Bit Set, Black Oxide, 1/4" Shank, 5-Piece FREEOVER35 Use to isolate a tanklessPrecision ground 82 degree tip for countersinking most machinable metals, wood or plastic. Made from industrial grade high speed steel for increased durability. Includes a black oxide finish for added corrosion resistance. Five flute design reduces vibration for smoother drilling and extended life. Precision ground 82 degree tip for countersinking most machinable metals, wood or plastic Made from industrial grade high speed steel for increased