IRWIN® 12411 Countersink Drill Bit, 1/2 in Drill Bit, Round Shank, 1-21/32 in OAL, 5 -Flute, HSS Tap & Die Combo Sets 3:1 gear drive for fast

3:1 gear drive for fast rewind

Double wing spurs allow for fast

2-1/2 in Blade Width

Wheel-coated with tungsten carbide grit for long life

IRWIN® 12411 Countersink Drill Bit, 1/2 in Drill Bit, Round Shank, 1-21/32 in OAL, 5 -Flute, HSS Tap & Die Combo Sets 3:1 gear drive for fastIRWIN Countersink Drill Bit, 1 2 in Drill Bit, 1 2 in Body Diameter, 1 21 32 in Overall Length, 5 Flutes, 3 8 in Flute Length, 1 4 in Shank Diameter, Round Shank, 82 deg Point Angle, HSS, Finish: Black Oxide, Applicable Materials: Iron, Plastic, Soft Metal, Steel, WoodFeatures: Precision ground 82 deg tip for countersinking most machinable metals, wood or plastic Made from industrial grade HSS for increased durability Includes a black oxide finish for