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Shops, Garages, Tools and Projects.Selecting a Tap Drill
Are you trying to determine what size of hole to drill before cutting threads with a tap?
Rather than digging out your copy of Machinery’s Handbook, check your drill index. Many of the better indexes have a tap drill chart built right in.
| July 26th, 2010 | Posted in Tools |
August 1st, 2010 at 9:30 pm
I have always liked those big three in one sets of letter, number, and fractional bits all rolled into one. That is a good tip on the drill index thing there Steve.