The recommended drill size for a 0-80 tap is 56.
The recommended drill size for tapping threads with an M3 tap is 2.5mm.
The recommended drill size for tapping threads with an M3 tap is 2.5mm.
For a cut tap the correct drill size is a #17 drill, which has a diameter of .173 inches.
For an M6 tap, a drill bit size of 5.0mm should be used.
2,3mm
Use 7/64 as tap drill and 9/64 as clearance drill
Drill and tap it for what?
Google "tap drill sizes" and you'll get 19400 results. The formula for that calculation is searchable in Machinery's Handbook, but there are simple charts you will get in your search that can give you the answer for any size you need to know.
1/8, tpi=28, pitch=0.0357, major dia.=0.383, minor dia.=0.3372, tap drill size=11/32 (8.73mm)
The hole would have no metal to cut the threads in if the hole were drilled the same diameter as the tap.
For a 6-48 tap, a #43 drill bit is typically used. This size provides the appropriate clearance for the threads created by the tap. It's important to ensure proper sizing for effective tapping and to avoid damaging the material. Always check specific tapping guidelines for the material being worked on, as recommendations may vary slightly.
The recommended drilling procedure for tapping M3 threads with a tap is to use a drill bit that is 2.5mm in diameter to create a pilot hole before using the M3 tap to cut the threads. Make sure to use cutting fluid and apply even pressure while tapping to avoid breaking the tap.