Hand Tap Series AL-HT Hand Taps for Helical Coil Wire Screw Thread Inserts Spiral Fluted Taps (for blind hole) Basic L ℓ ℓn ℓs Ds K ℓk No. of Size Class Code Chamfer major dia (mm) (mm) (mm) (mm) (mm) (mm) (mm) flutes Type Stock (mm) STI M12 × 1.75 1b TW012P1LEBA 1.5P 14.273 95 26 - 48 12.5 10 13 4 3 ◎ TW012O1LEB5 5P STI M12 × 1.5 1b 13.948 88 26 - 45 10.5 8 11 4 3 △ TW012O1LEBA 1.5P Spiral Fluted Taps (for through hole) TW012N1LEB5 5P STI M12 × 1.25 1b 13.624 88 26 - 45 10.5 8 11 4 3 △ TW012N1LEBA 1.5P TW014Q1LEB5 5P STI M14 × 2 1b 16.598 100 33 - 51 14 11 14 4 3 △ TW014Q1LEBA 1.5P Spiral Pointed Taps (for through hole) TW014O1LEB5 5P STI M14 × 1.5 1b 15.948 95 26 - 48 12.5 10 13 4 3 △ TW014O1LEBA 1.5P TW016Q1LEB5 5P STI M16 × 2 1b 18.598 105 33 - 50 15 12 15 4 4 ○ TW016Q1LEBA 1.5P Hand Taps TW016O1LEB5 5P STI M16 × 1.5 1b 17.948 100 33 - 51 14 11 14 4 3 △ TW016O1LEBA 1.5P TW018R1LEB5 5P STI M18 × 2.5 1b 21.248 115 33 - 55 17 13 16 4 4 △ TW018R1LEBA 1.5P TW018O1LEB5 5P Cemented Carbide Taps STI M18 × 1.5 1b 19.948 105 33 - 50 15 12 15 4 4 △ TW018O1LEBA 1.5P TW020R1LEB5 5P STI M20 × 2.5 1b 23.248 120 39 - 55 19 15 18 4 4 ○ TW020R1LEBA 1.5P TW020O1LEB5 5P Roll Taps STI M20 × 1.5 1b 21.948 115 33 - 55 17 13 16 4 4 △ TW020O1LEBA 1.5P TW022R1LEB5 5P STI M22 × 2.5 1b 25.248 125 39 - 58 19 15 18 4 4 △ TW022R1LEBA 1.5P TW022O1LEB5 5P STI M22 × 1.5 1b 23.948 120 39 - 55 19 15 18 4 4 △ Special Thread Taps Simple Inspection Tools TW022O1LEBA 1.5P TW024S1LEB5 5P STI M24 × 3 1b 27.897 135 46 - 62 23 17 20 4 4 ○ TW024S1LEBA 1.5P TW024O1LEB5 5P STI M24 × 1.5 1b 25.948 130 39 - 60 20 15 18 4 4 △ TW024O1LEBA 1.5P Pipe Taps For Helical Coil Wire Screw Thread Inserts, for Unified Threads Basic L ℓ ℓn ℓs Ds K ℓk No. of Size Class Code Chamfer major dia (mm) (mm) (mm) (mm) (mm) (mm) (mm) flutes Type Stock (mm) TWUN4H1LEB5 5P STI No.4-40UNC 1b 3.670 52 11 17 29 5 4 7 3 2 △ Thread Mills TWUN4H1LEBA 1.5P TWUN4F1LEB5 5P STI No.4-48UNF 1b 3.532 52 11 17 29 5 4 7 3 2 △ TWUN4F1LEBA 1.5P TWUN5H1LEB5 5P STI No.5-40UNC 1b 4.000 52 11 17 29 5 4 7 3 2 △ TWUN5H1LEBA 1.5P Dies TWUN6J1LEB5 5P STI No.6-32UNC 1b 4.536 60 13 22 33 5.5 4.5 7 3 2 △ TWUN6J1LEBA 1.5P TWUN6H1LEB5 5P STI No.6-40UNF 1b 4.330 60 13 22 33 5.5 4.5 7 3 2 △ TWUN6H1LEBA 1.5P Center Drills TWUN8J1LEB5 5P STI No.8-32UNC 1b 5.197 62 15 26 33 6 4.5 7 4 2 △ TWUN8J1LEBA 1.5P TWUN8I1LEB5 5P STI No.8-36UNF 1b 5.083 62 9.5 26 33 6 4.5 7 4 1 △ TWUN8I1LEBA 1.5P Centering Tools TWUNAM1LEB5 5P STI No.10-24UNC 1b 6.200 62 15 26 33 6 4.5 7 4 2 △ TWUNAM1LEBA 1.5P TWUNAJ1LEB5 5P STI No.10-32UNF 1b 5.857 62 15 26 33 6 4.5 7 4 2 △ TWUNAJ1LEBA 1.5P JIS HT-43 ◎=Standard ○=Semi standard △=Made to order 468 For improvement, spec may change without advance notice.