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BIT SIZES FOR ROLL PIN SCREW HEADS
Unread 04-01-2014, 10:31 PM   #11
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J. A. EARLY
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Default BIT SIZES FOR ROLL PIN SCREW HEADS

Tom,

I found two bit sizes needed checking several screws. You can buy these individually from Brownells so you don't have to buy the entire set:

340-5 (.340 shank diameter- .040 blade thickness)

300-3 (.300 shank diameter - .030 blade thickness)

I would buy a couple of each if I was going to make a habit of this.
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