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  for Metal Finishing since 1989
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Burr free product

2002

My customer wants burr free product and here is the problem. We manufacture socket head cap screws which require cross head drill of 1 to 3 holes. The diameter of the holes are .044 to .050 inches the material is A286 or 302 Stainless. The problem is when the drill goes through the socket from one wall to the other a burr is placed inside the socket. This burr prevents the socket key from entering to the bottom of the socket.

Any Ideas would be greatly helpful.

Richard Smernoff
Anaheim, California, USA

Lower drill feed speed, faster drill speed, keep drills very sharp. In other words, use the drill to cut the hole, not to push thru the thin membrane that exists just before breakthrough.

Tom Gallant
- Torrance, California, USA
2002