Tutorial - Drill Bit & Tap Size Chart common sizes for folders

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 Tutorial - Drill Bit & Tap Size Chart common sizes for folders

Tap and Drill Chart

 Clearance Fit Screw Head

Tap Drill size (decimal) Ti Drill Close Free bttn hex

0-80 3/64? (0.0469) 55 52 50 31 42

1-72 53 (0.0595) 52 48 46 27 30 

2-56 50 (0.07) 49 43 41 19 27

4-40 43 (0.089) 42 32 30 2 13

 

To tap Titanium for threads, a bigger hole is needed when using these size taps or you will break the tap. This still gives a 50% thread which is plenty for Titanium.

 

 Print out this chart by cutting and pasting into a word processor or even your mail program.

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