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LMT Onsrud 63-620 Solid Carbide Upcut Spiral O Flute Cutting TOOL, Inch, Uncoated (Bright) Finish, 22 Degree Helix, 1 Flute, 2.0000" Overall Length, 0.2500" Cutting Diameter, 0.2500" Shank Diameter?
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1 review of this product found across Reddit:
3 points
·
14th Sep 2018
When cutting aluminum on a router, you have to rely on the chip to remove the heat from the cut zone. A single flute cutter, like this Onsrud O-flute gives a nice fat chip that will allow you to get a clean cut without using coolant. For this 1/4" bit, start off at 18,500 rpm on your spindle, 85 inches/min (2200 mm/min) on your feed rate and 3-4mm on your DOC.
Source: thousands of sheets of aluminum through my router.
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