Tap drill answer
What Size Drill Bit for M6 x 1 Tap?
For a M6 x 1 tap, a common reference drill is 5.0 mm, which is 0.1969 in or 5.00 mm. Verify the value for material, tap type, and required thread engagement.
M6 x 1 tap drill quick answer
Method: Metric values use the visible major-diameter-minus-pitch estimate unless an alternate chart assumption is displayed. Reviewed 2026-07-24.
How to use this M6 x 1 value
This page gives a common chart value for hand tapping and general reference work. Use a different value when your drawing specifies a thread class, percent thread, forming tap, pipe thread, thin wall, brittle material, or plated/coated part.
- Start with the listed drill size.
- Confirm the tap type and thread engagement target.
- Test in scrap material when fit matters.
- Use cutting fluid and proper chip clearing for deeper holes.
What size drill bit for M6 x 1 tap?
A common starting value for M6 x 1 is 5.0 mm. The metric label gives a 6 mm nominal diameter and 1 mm pitch, so the quick estimate is 6 minus 1.
M6 tap drill size in inches
5.0 mm converts to about 0.1969 in. Compare the decimal if your drill index is organized by inch sizes.
Is M6 tap drill size always 5.0 mm?
5.0 mm is the common cutting-tap starting point for M6 x 1. Forming taps, controlled thread percentage, coating, and material can call for a different value.
M6 x 1 vs M6 fine thread tap drill size
M6 x 1 is the common coarse pitch. A fine M6 thread uses a different pitch and should be checked separately before drilling.