Description
M4 X 4.5mm 3 Flute Straight Shank Solid Pilot Counterbore (2007-0055) ~ Made of high speed steel. ~ Cap screw is M4. ~ Cutter diameter is 8.0mm. ~ Shank diameter is 5.0mm. ~ Overall length is 71mm. ~ Pilot diameter is 4.5mm. ~ 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. Made of high speed steel. Cap screw is M4. Cutter diameter is 8.0mm. Shank diameter is 5.0mm. Overall length is 71mm.
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