Reference Source

4.5 x .75 · Metric Coarse

For 4.5 x .75 · Metric Coarse, thread or drill designation is 4.5 x .75; record type is tap_drill; tap drill or decimal size is 3.75; thread series is Metric Coarse, recorded from its source on 2026-08-28; source re-checked 2026-09-15.

Thread or drill designation
4.5 x .75 our reading
Record type
tap_drill our reading
Tap drill or decimal size
3.75 verified
Thread series
Metric Coarse our reading
Sourcevictornet.com
Verified
Review by
DatasetTap drill size and drill-size decimal equivalents

Values marked our reading are our classification of what the source says — the source does not print them in those words. The quote below is the evidence for each one; judge it yourself.

What the source says

4.5 x .75 | 3.75

victornet.com, retrieved 2026-08-28

Sources disagree

More than one authority states this, and they do not state the same thing. Both are reproduced with the source each came from — deciding between them is yours, not ours.

Tap drill or decimal size

victornet.com says tap drill or decimal size is 3.75, as of 2026-08-28.

4.5 x .75 | 3.75

https://www.victornet.com/reference/Tap_Drill.html

newmantools.com says tap drill or decimal size is 3.7, as of 2026-08-28.

4.5 x .75 3.7

https://www.newmantools.com/tapdrill.htm

Sources

Last verified against source: . Due for re-check by . This page as Markdown · OKF bundle · full dataset as JSON.