③ Spiral Pointed Tap Series for through hole Overall length L Thread length ℓ Thread + Neck length ℓn Shank dia. Ds Size of square K Length of square ℓk ANSI ZELX SS PO Spiral Pointed Taps for Stainless Steels L ℓ ℓn Ds K ℓk No. of Size Class Code Chamfer TYPE Spiral Fluted Taps (for blind hole) (inch) (inch) (inch) (inch) (inch) (inch) flutes ① 5/16-18UNC GH5 Y82645 4.5P 2.718 0.669 1.125 0.318 0.238 0.375 3 3 5/16-18UNC GH7 Y82675 4.5P 2.718 0.669 1.125 0.318 0.238 0.375 3 3 5/16-24UNF GH3 Y82616 4.5P 2.718 0.669 1.125 0.318 0.238 0.375 3 3 5/16-24UNF GH4 Y82632 4.5P 2.718 0.669 1.125 0.318 0.238 0.375 3 3 Spiral Fluted Taps (for through hole) 5/16-24UNF GH5 Y82646 4.5P 2.718 0.669 1.125 0.318 0.238 0.375 3 3 ② 5/16-24UNF GH6 Y82663 4.5P 2.718 0.669 1.125 0.318 0.238 0.375 3 3 5/16-24UNF GH7 Y82676 4.5P 2.718 0.669 1.125 0.318 0.238 0.375 3 3 3/8-16UNC GH3 Y82617 4.5P 2.937 0.748 1.25 0.381 0.286 0.437 3 3 3/8-16UNC GH5 Y82647 4.5P 2.937 0.748 1.25 0.381 0.286 0.437 3 3 Spiral Pointed Taps (for through hole) ③ 3/8-16UNC GH7 Y82668 4.5P 2.937 0.748 1.25 0.381 0.286 0.437 3 3 3/8-24UNF GH3 Y82618 4.5P 2.937 0.748 1.25 0.381 0.286 0.437 3 3 3/8-24UNF GH4 Y82633 4.5P 2.937 0.748 1.25 0.381 0.286 0.437 3 3 3/8-24UNF GH5 Y82648 4.5P 2.937 0.748 1.25 0.381 0.286 0.437 3 3 3/8-24UNF Hand Taps GH6 Y82664 4.5P 2.937 0.748 1.25 0.381 0.286 0.437 3 3 ④ 3/8-24UNF GH7 Y82678 4.5P 2.937 0.748 1.25 0.381 0.286 0.437 3 3 7/16-14UNC GH3 Y82619 4.5P 3.156 0.866 - 0.323 0.242 0.406 3 4 7/16-14UNC GH5 Y82649 4.5P 3.156 0.866 - 0.323 0.242 0.406 3 4 7/16-20UNF GH3 Y82620 4.5P 3.156 0.866 - 0.323 0.242 0.406 3 4 Cemented Carbide Taps 7/16-20UNF GH5 Y82650 4.5P 3.156 0.866 - 0.323 0.242 0.406 3 4 ⑤ 7/16-20UNF GH6 Y82691 4.5P 3.156 0.866 - 0.323 0.242 0.406 3 4 7/16-20UNF GH7 Y82680 4.5P 3.156 0.866 - 0.323 0.242 0.406 3 4 1/2-13UNC GH3 Y82621 4.5P 3.375 0.984 - 0.367 0.275 0.437 3 4 1/2-13UNC GH5 Y82651 4.5P 3.375 0.984 - 0.367 0.275 0.437 3 4 Roll Taps 1/2-13UNC ⑥ GH7 Y82681 4.5P 3.375 0.984 - 0.367 0.275 0.437 3 4 1/2-20UNF GH3 Y82622 4.5P 3.375 0.984 - 0.367 0.275 0.437 3 4 1/2-20UNF GH5 Y82652 4.5P 3.375 0.984 - 0.367 0.275 0.437 3 4 1/2-20UNF GH6 Y82692 4.5P 3.375 0.984 - 0.367 0.275 0.437 3 4 1/2-20UNF GH7 Y82682 4.5P 3.375 0.984 - 0.367 0.275 0.437 3 4 Special Thread Taps Simple Inspection Tools ⑦ 1/2-20UNF GH9 Y82685 4.5P 3.375 0.984 - 0.367 0.275 0.437 3 4 9/16-12UNC GH3 Y82653 4.5P 3.593 0.984 - 0.429 0.322 0.5 3 4 9/16-18UNF GH3 Y82654 4.5P 3.593 0.984 - 0.429 0.322 0.5 3 4 9/16-18UNF GH5 Y82666 4.5P 3.593 0.984 - 0.429 0.322 0.5 3 4 Pipe Taps 5/8-11UNC GH3 Y82625 4.5P 3.812 1.083 - 0.48 0.36 0.562 3 4 ⑧ 5/8-11UNC GH5 Y82655 4.5P 3.812 1.083 - 0.48 0.36 0.562 3 4 5/8-18UNF GH3 Y82626 4.5P 3.812 1.083 - 0.48 0.36 0.562 3 4 5/8-18UNF GH4 Y82636 4.5P 3.812 1.083 - 0.48 0.36 0.562 3 4 5/8-18UNF GH5 Y82656 4.5P 3.812 1.083 - 0.48 0.36 0.562 3 4 Thread Mills Premium Thread Mills 5/8-18UNF GH6 Y82694 4.5P 3.812 1.083 - 0.48 0.36 0.562 3 4 ⑨ 5/8-18UNF GH7 Y82591 4.5P 3.812 1.083 - 0.48 0.36 0.562 3 4 3/4-10UNC GH3 Y82627 4.5P 4.25 1.201 - 0.59 0.422 0.687 3 4 3/4-10UNC GH5 Y82657 4.5P 4.25 1.201 - 0.59 0.422 0.687 3 4 3/4-16UNF GH3 Y82628 4.5P 4.25 1.201 - 0.59 0.422 0.687 3 4 Dies ⑩ 3/4-16UNF GH5 Y82658 4.5P 4.25 1.201 - 0.59 0.422 0.687 3 4 3/4-16UNF GH7 Y82592 4.5P 4.25 1.201 - 0.59 0.422 0.687 3 4 7/8-9UNC GH4 Y82695 4.5P 4.687 1.339 - 0.697 0.523 0.75 3 4 7/8-14UNF GH4 Y82696 4.5P 4.687 1.339 - 0.697 0.523 0.75 3 4 7/8-14UNF GH6 Y82699 4.5P 4.687 1.339 - 0.697 0.523 0.75 3 4 Center Drills Centering Tools ⑪ 1 -8UNC GH4 Y82697 4.5P 5.125 1.496 - 0.8 0.6 0.812 3 4 1 -12UNF GH4 Y82679 4.5P 5.125 1.496 - 0.8 0.6 0.812 3 4 1 1/8-7UNC GH6 Y82700 4.5P 5.437 1.535 - 0.896 0.672 0.875 4 4 ANSI ③-65 ※ This product is different from JIS products in shape and dimensions, please be careful when using.