[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Difference #30 drill bit v. 1/8" bit? 100deg countersink supplier?

The plans call for a #30 drill bit in many places for a 1/8" pop rivet, but
what is the difference? Also, do you know where I can find a 100 degree
countersink? Aircraft Spruce shows one for $46!! and what attachments are
needed to complete this tool, thanks in advance, chris brock.