https://www.mccoys.com/shop/p/8787038-052303-32/irwin-1877720-countersink-drill-bit-hss-black-oxide
1877720 Countersink Drill Bit, HSS, Black Oxide
Sku: 8787038-052303-32
$39.82
28 Available at
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Estimated Arrival On: 02/05/2026
Drill Bit Sets :Irwin 1877720 3 Piece
Precision ground 82 deg tip for countersinking most machinable metals, wood or plastic. HSS with black oxide coating for corrosion-resistance. Five-flute design reduces chatter for smoother drilling and extended life. Set includes one 1/2 in, one 5/8 in and one 3/4 in countersink.
- 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 handheld and stationary drills
- Precision grind process removes the burr from cutting edge for cleaner cuts
Specifications
1/4 in Shank
Material
HSS
Finish
Black Oxide
Includes
1/2 in, 5/8 in and 3/4 in Countersink and Clam
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