taylortools

NC & NF S.T.I. Taps
Right Hand High Speed Steel
Screw Thread Insert Taps are for machine or hand tapping holes which will accept "Helicoil" or screw
thread inserts of the same nominal size and pitch.
Size
GH#
# Of
Flutes
Blank
Size
Plug
EDP #
Bott.
EDP #
Spiral
Point #
of
Flutes
Spiral
Point
Plug
#2-56 NC 2 3 #4 16532 16533 2 16535
#4-40 NC 2 3 #5 16582 16583 2 16585
#6-32 NC 2 4 #10 16622 16623 2 16625
#8-32 NC 2 4 #12 16642 16643 2 16645
#10-24 NC 2 4 1/4" 16662 16663 2 16665
#10-32 NF 2 4 1/4" 16672 16673 2 16675
1/4"-20 NC 3 4 5/16" 16702 16703 2 16705
1/4"-28 NF 2 4 5/16" 16712 16713 2 16715
5/16"-18 NC 3 4 3/8" 16722 16723 3 16725
5/16"-24 NF 2 4 3/8" 16732 16733 3 16735
3/8"-16 NC 3 4 1/2" 16742 16743 3 16745
3/8"-24 NF 3 4 1/2" 16752 16753 3 16755
7/16"-14 NC 3 4 9/16" 16762 16763 3 16765
7/16"-20 NF 3 4 1/2" 16772 16773 3 16775
1/2"-13 NC 3 4 5/8" 16782 16783 3 16785
1/2"-20 NF 3 4 9/16" 16792 16793 3 16795
5/8"-11 NC 3 4 3/4" 16822 16823 -- --
5/8"-18 NF 3 4 3/4" 16832 16833 -- --
3/4"-10 NC 3 4 7/8" 16862 16863 -- --
3/4"-16 NF 3 4 7/8" 16872 16873 -- --
Other tap styles, sizes and pitches available on request
V 1.0 – November 2011 Page 58