In Reply to: If you use Flat Head Cap screws this counter sink set is a must have posted by B. Scarpia on May 15, 2021 at 07:38:02:
To cut to depth one must set a stop on the drill press quill. If using a hand drill it's not so easy. Keep in mind the cutting tool has no function to set a depth of cut.
Cutting metal a reasonable steady speed should be used and the workpiece should be held with a clamp not your hand. The .25di maybe around 500RPM aluminum the larger sizes slower if possible a little oil would be helpful.
I see no issue with the cutters they seem correct.
You must never cut to full depth using a counter sink. Also best practices would be to keep your work more or less to the center portion of the cutting flutes as best you can.
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Follow Ups
- Nothing wrong with the Counter Sink cutters normal. - Mossback 05/19/2118:15:17 05/19/21 (0)