HHIP 2007-0001 M4-M12 HSS 3 Flute Straight Shank Solid Pilot Counterbore 6-Piece Set

About this item

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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