Overall Thread Thread+Neck Shank Size of Length of length length length dia. square square L ℓ ℓn Ds K ℓk ZELX TI LHSP Spiral Fluted Taps for Titanium Alloys, Through Hole Use(with LH spiral flutes) Size Class Code Chamfer L ℓ ℓn Ds K ℓk No. of Type (for blind hole) Spiral Fluted Taps (inch) (inch) (inch) (inch) (inch) (inch) flutes GH5 Y85637 No.8-32UNC GH6 Y85660 5P 2.125 0.453 0.75 0.168 0.131 0.25 3 1 GH7 Y85667 GH3 Y85609 (for through hole) Spiral Fluted Taps No.10-24UNC 5P 2.375 0.531 0.875 0.194 0.152 0.25 3 1 GH5 Y85639 GH3 Y85610 GH4 Y85630 No.10-32UNF GH5 Y85640 5P 2.375 0.531 0.875 0.194 0.152 0.25 3 1 (for through hole) Spiral Pointed Taps GH6 Y85661 GH7 Y85670 GH3 Y85613 1/4-20UNC 5P 2.5 0.591 1 0.255 0.191 0.312 3 2 GH5 Y85643 GH3 Y85614 Hand Taps GH4 Y85631 1/4-28UNF GH5 Y85644 5P 2.5 0.591 1 0.255 0.191 0.312 3 2 GH6 Y85662 GH7 Y85674 Carbide Taps Cemented GH3 Y85615 5/16-18UNC 5P 2.718 0.669 1.125 0.318 0.238 0.375 3 3 GH5 Y85645 GH3 Y85616 GH4 Y85632 Roll Taps 5/16-24UNF GH5 Y85646 5P 2.718 0.669 1.125 0.318 0.238 0.375 3 3 GH6 Y85663 GH7 Y85676 GH3 Y85617 3/8-16UNC 5P 2.937 0.748 1.25 0.381 0.286 0.437 3 3 Simple Inspection Tools Pipe Taps GH5 Y85647 GH3 Y85618 GH4 Y85633 3/8-24UNF GH5 Y85648 5P 2.937 0.748 1.25 0.381 0.286 0.437 3 3 GH6 Y85664 GH7 Y85678 GH3 Y85619 7/16-14UNC 5P 3.156 0.866 - 0.323 0.242 0.406 3 4 GH5 Y85649 GH3 Y85620 Thread Mills 7/16-20UNF 5P 3.156 0.866 - 0.323 0.242 0.406 3 4 GH5 Y85650 GH3 Y85621 1/2-13UNC 5P 3.375 0.984 - 0.367 0.275 0.437 3 4 GH5 Y85651 GH3 Y85622 Dies 1/2-20UNF 5P 3.375 0.984 - 0.367 0.275 0.437 3 4 GH5 Y85652 5/8-11UNC GH3 Y85625 5P 3.812 1.083 - 0.480 0.36 0.562 3 4 5/8-18UNF GH3 Y85626 5P 3.812 1.083 - 0.480 0.36 0.562 3 4 3/4-10UNC GH3 Y85627 5P 4.25 1.201 - 0.590 0.442 0.687 3 4 3/4-16UNF GH3 Y85628 5P 4.25 1.201 - 0.590 0.442 0.687 3 4 Center Drills Centering Tools ANSI SL-2 223