Reference Source

1-1/2" · British Standard Pipe Taper (BSPT)

For 1-1/2" · British Standard Pipe Taper (BSPT), thread or drill designation is 1-1/2"; record type is tap_drill; tap drill or decimal size is 44.5mm; thread series is British Standard Pipe Taper (BSPT), recorded from its source on 2026-08-28; source re-checked 2026-09-15.

Thread or drill designation
1-1/2" our reading
Record type
tap_drill our reading
Tap drill or decimal size
44.5mm verified
Thread series
British Standard Pipe Taper (BSPT) our reading
Sourcenewmantools.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

1-1/2" | 11 | 1.882 | 45.5 mm | 44.5mm

newmantools.com, retrieved 2026-08-28

Source

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