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| Metalworking (rec.crafts.metalworking) Discuss various aspects of working with metal, such as machining, welding, metal joining, screwing, casting, hardening/tempering, blacksmithing/forging, spinning and hammer work, sheet metal work. |
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Countersink selection
What Ned said. 60 degrees is best for running centers.
Bob Swinney "Ned Simmons" wrote in message ... In article , what says... I'd like to replace a burned up countersink. What angle is most useful for general work? 6-flute cobalt sound good? 82 degrees for UN flat heads, 90 degrees for metric. I prefer the Ford type single flute c'sinks for general use. http://www.maford.com/taf/catalog.taf?category=a11 Ned Simmons |
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