Irwin 12411 Drill Bit, 1/2 in Dia, 1-21/32 in OAL, Countersink, 5-Flute, 1/4 in Dia Shank, Round Shank tools--07-20-26 Full range of tip designs

Full range of tip designs - conical

upholstery and carpet

Hollow ground extra heavy-duty 0

backed by the Rip Guard™ limited lifetime tooth break warranty

(SEALANT ROOF BRUSH CLEAR - 6012413 - 14004)

Irwin 12411 Drill Bit, 1/2 in Dia, 1-21/32 in OAL, Countersink, 5-Flute, 1/4 in Dia Shank, Round Shank tools--07-20-26 Full range of tip designsHSS milled and precision ground to 82 deg for countersinking into most machinable materials such as iron, steel, soft metals, plastic or wood. Precision grind process removes the burr from cutting edge for cleaner cuts Made of high grade heat treated forged steel, plated and black oxide finished to prevent rust Black oxide finish resists corrosion Five flute design reduces vibration for smoother drilling and extended life 1 4 in round shank fits all