Get the Free Drill Tap Chart
Inch, metric, and NPT — all the tap drill sizes you need on one sheet. Covers drill sizes up to 1.5", common inch and metric tap sizes, and NPT pipe threads.
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There are four unique tables on this Drill Tap Chart:
- DRILL SIZES – This table lists all drill sizes up to 1.000” and the most common from 1.000” up to 1.500”
- INCH TAP DRILL SIZES – This table lists the most common tap sizes, typically one coarse and one fine thread each, from a #0 to 1-1/2
- METRIC TAP DRILL SIZES – This table lists the most common tap sizes, typically one coarse and one fine thread each, from M1.6 to M39
- PIPE THREADS (NPT) – This table lists the common NPT threads from 1/16” to 3”
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