Irwin 3-Piece HSS Black Oxide Metal Countersink Bit Set solo glove Optical quality

Optical quality

the highest level of encryption

Seals out cold air

Will not shrink

Bring fresh air and sunlight into the home with the Wood Five Bar screen door from Screen Tight

Irwin 3-Piece HSS Black Oxide Metal Countersink Bit Set solo glove Optical qualityHigh speed steel with black oxide coating for corrosion resistance. 5 flute design reduces vibration for smoother drilling. Precision ground 82 deg (degree) tip for countersinking into most machinable metals. 1 4" round shank compatible with all hand held and stationary drills. Set includes 1 each: 1 2" Model No. 12411 (SKU 325880), 5 8" Model No. 12412 (SKU 325899), 3 4" Model No. 12413 (SKU 325902).