Irwin Impact Masonry Bits 1/4 in Dia x 4 in Peep Holes & Viewers designed as a door stop

designed as a door stop that kicks down to hold the door open

Pump easily mounts to a standard drum with 2 in

Built tough for superior performance and long-lasting durability in all kinds of weather extremes

We lead the industry in developing top-performing

Irwin Impact Masonry Bits 1/4 in Dia x 4 in Peep Holes & Viewers designed as a door stopInnovative pressed carbide tip with aggressive cutting angles for faster drilling and longer bit life One piece construction withstands higher torque loads than standard quick change bits Black oxide finish resists corrosion and increases life of bit 1 4" quick change shank is designed to work with impact drivers, and reduces slipping in standard drill chucks