Description
HHIP 2007-0001 M4-M12 HSS 3 Flute Straight Shank Solid Pilot Counterbore 6-Piece Set
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- Made of high speed steel
- Continuous pilot counterbores cut rapidly, smoothly and accurately, producing long spiraling chips rather than small metal particles
- The pilot extends the full length of the flute portion of the tool
- As cutter flutes are ground back due to wear, a new section of pilot becomes exposed
- The pilot head may be cut off to any desired length when repeated sharpening makes it too long for practical use; Continuous pilot counterbores have a life many times that of the conventional type counterbore
