Overall Thread Thread+Neck Shank Size of Length of length length length dia. square square L ℓ ℓn Ds K ℓk ZELX SS SP Spiral Fluted Taps for Stainless Steels 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 GH2 Y84611 2.5P Y84610 GH3 Y84010 1.5P GH4 Y84630 (for through hole) Spiral Fluted Taps No.10-32UNF 2.5P 2.375 0.276 0.875 0.194 0.152 0.25 3 1 Y84640 GH5 Y84040 1.5P GH6 Y84662 2.5P GH7 Y84670 (for through hole) Spiral Pointed Taps No.12-24UNC GH3 Y84688 2.5P 2.375 0.354 0.937 0.220 0.165 0.281 3 1 No.12-28UNF GH3 Y84689 2.5P 2.375 0.276 0.937 0.220 0.165 0.281 3 1 Y84613 2.5P GH3 Y84013 1.5P 1/4-20UNC Y84643 2.5P 2.5 0.433 1 0.255 0.191 0.312 3 2 Hand Taps GH5 Y84043 1.5P GH7 Y84673 2.5P Y84614 2.5P GH3 Carbide Taps Cemented Y84014 1.5P GH4 Y84631 2.5P 1/4-28UNF Y84644 2.5 0.354 1 0.255 0.191 0.312 3 2 GH5 Y84044 1.5P GH6 Y84664 Roll Taps 2.5P GH7 Y84674 Y84615 2.5P GH3 Y84015 1.5P 5/16-18UNC Y84645 2.5P 2.718 0.472 1.125 0.318 0.238 0.375 3 3 GH5 Simple Inspection Tools Pipe Taps Y84045 1.5P GH7 Y84675 2.5P Y84616 2.5P GH3 Y84016 1.5P GH4 Y84632 5/16-24UNF 2.5P 2.718 0.394 1.125 0.318 0.238 0.375 3 3 Y84646 GH5 Y84046 1.5P GH7 Y84676 2.5P Y84617 2.5P Thread Mills GH3 Y84017 1.5P Y84647 2.5P 3/8-16UNC GH5 2.937 0.551 1.25 0.381 0.286 0.437 3 3 Y84047 1.5P Y84677 2.5P Dies GH7 Y84077 1.5P Y84618 2.5P GH3 Y84018 1.5P Y84633 2.5P GH4 Center Drills 3/8-24UNF Y84033 1.5P 2.937 0.394 1.25 0.381 0.286 0.437 3 3 Y84648 2.5P GH5 Y84048 1.5P GH7 Y84678 2.5P Y84619 2.5P Centering Tools GH3 Y84019 1.5P 7/16-14UNC Y84649 2.5P 3.156 0.591 - 0.323 0.242 0.406 3 4 GH5 Y84049 1.5P GH7 Y84679 2.5P ANSI SP-14 201