Spiral Fluted Tap ZELX NI SP Spiral Fluted Taps for Nickel Base Alloys Spiral Fluted Taps (for blind hole) Size Class Code Chamfer L ℓ ℓn Ds K ℓk No. of Type (inch) (inch) (inch) (inch) (inch) (inch) flutes No.4-40UNC GH5 Y87534 3P 1.875 0.236 0.562 0.141 0.11 0.187 3 1 No.5-40UNC GH2 Y87503 3P 1.937 0.236 0.625 0.141 0.11 0.187 3 1 Y87504 3P Spiral Fluted Taps (for through hole) GH2 Y87006 1.5P Y87505 3P GH3 Y87005 1.5P No.6-32UNC GH4 Y87508 2 0.276 0.687 0.141 0.11 0.187 3 1 3P Spiral Pointed Taps (for through hole) Y87535 GH5 Y87035 1.5P GH6 Y87559 3P GH7 Y87565 GH2 Y87506 Hand Taps 3P Y87507 GH3 Y87580 1.5P GH4 Y87529 No.8-32UNC 3P 2.125 0.276 0.75 0.168 0.131 0.25 3 1 Y87537 Cemented Carbide Taps GH5 Y87037 1.5P GH6 Y87560 3P GH7 Y87567 Y87509 3P GH3 Roll Taps No.10-24UNC Y87009 1.5P 2.375 0.354 0.875 0.194 0.152 0.25 3 1 GH5 Y87539 3P GH2 Y87511 3P Y87510 GH3 Y81556 1.5P Pipe Taps Simple Inspection Tools GH4 Y87530 No.10-32UNF 3P 2.375 0.276 0.875 0.194 0.152 0.25 3 1 Y87540 GH5 Y87040 1.5P GH6 Y87561 3P GH7 Y87570 Y87513 3P GH3 Y87013 1.5P 1/4-20UNC 2.5 0.433 1 0.255 0.191 0.312 3 2 Y87543 3P GH5 Thread Mills Y87043 1.5P Y87514 3P GH3 Y87579 1.5P Y87531 3P GH4 Dies Y87031 1.5P 1/4-28UNF 2.5 0.354 1 0.255 0.191 0.312 3 2 Y87544 3P GH5 Y87443 1.5P GH6 Y87562 3P GH7 Y87574 Center Drills Y87515 3P GH3 Y87015 1.5P 5/16-18UNC 2.718 0.472 1.125 0.318 0.238 0.375 3 3 Y87545 3P GH5 Y87045 1.5P Centering Tools Y87516 3P GH3 Y87577 1.5P 5/16-24UNF 2.718 0.394 1.125 0.318 0.238 0.375 3 3 GH4 Y87532 3P GH5 Y87546 ANSI SP-29 216