taylortools

BSPT British Taper Pipe Taps
Right Hand High Speed Steel Bottoming Only
Full Form Whitworth
Size
Threads
per Inch
EDP #
Basic
Major
Diameter
Inches
Metric
Equivalent
Overall
Length
Length of
Thread
Shank
Diameter
Size of
Square
Length
of
Square
1/16" 28 42001 0.304 7.7 x 0.91 2.1/8" 11/16" 0.3125 0.234 3/8"
1/8" 28 42006 0.383 9.7 x 0.91 2.1/8" 3/4" 0.4375 0.328 3/8"
1/4" 19 42011 0.518 13.2 x 1.34 2.7/16" 1.1/16" 0.5625 0.421 7/16"
3/8" 19 42016 0.656 16.7 x 1.34 2.9/16" 1.1/16" 0.7000 0.531 1/2"
1/2" 14 42021 0.825 21.0 x 1.81 3.1/8" 1.3/8" 0.6875 0.515 5/8"
3/4" 14 42031 1.041 26.4 x 1.81 3.1/4" 1.3/8" 0.9093 0.679 11/16"
1" 11 42041 1.309 33.2 x 2.31 3.3/4" 1.3/4" 0.9093 0.843 13/16"
1.1/4" 11 42046 1.650 41.9 x 2.31 4" 1.3/4" 1.3125 0.984 15/16"
1.1/2" 11 42051 1.882 47.8 x 2.31 4.1/4" 1.3/4" 1.5000 1.125 1"
2" 11 42056 2.347 59.6 x 2.31 4.1/2" 1.3/4" 1.8750 1.406 1.1/8"
V 1.0 – November 2011 Page 107