Irwin® 12413 High Speed Steel Countersink Drill Bit, Black Oxide, 3/4" HELLOFALL10 Use replacement blade #21-291

Use replacement blade #21-291

Larger mop head covers 25% more surface area

Flow Rate: 24 gpm

The maximum pressure rating is 200 pounds per square inch (psi) for water

Irwin® 12413 High Speed Steel Countersink Drill Bit, Black Oxide, 3/4" HELLOFALL10 Use replacement blade #21-291Irwin Countersink Drill Bit is made from industrial grade high speed steel for increased durability. Precision ground 82 degree tip for countersinking most machinable metals, wood or plastic. Five flute design reduces vibration for smoother drilling and extended life. 1 4" round shank fits all handheld and stationary drills. Includes a black oxide finish for added corrosion resistance. Diameter: 3 4" Flute Length: 5 8" Overall Length: 1 13 16" Shank