High-performance spiral fluted tap for fast, stable threading of steel and alloy steel — engineered for reliable blind-hole tapping with long tool life.
🔍 Click to zoom A special high-strength thread profile raises overall thread strength and prevents early breakage.
A newly shaped flute curls chips stably and lowers the risk of chip entanglement.
An exclusively developed coating with excellent wear resistance and lubricity, extending tool life.
An unequal lead at the flute end improves chip evacuation when tapping blind holes.
Available in metric sizes M3×0.5 to M24×3.0 and Unified inch sizes #4-40 up to 1-8 (UNC and UNF), with overall lengths of roughly 46–125 mm.
Widen a range or clear a field. Need a size not listed? Request a quote →
| ORDER NO. | SIZE | GRADE | FLUTE L | OAL | SHANK | COATING |
|---|---|---|---|---|---|---|
| 291070 | M3 × 0.5 · STD | OH2 | 6 | 46 | 4 | TP-Coating |
| 291170 | M3 × 0.5 · STD+1 | OH3 | 6 | 46 | 4 | TP-Coating |
| 291270 | M3 × 0.5 · STD+2 | OH4 | 6 | 46 | 4 | TP-Coating |
| 291071 | M4 × 0.7 · STD | OH3 | 8.4 | 52 | 5 | TP-Coating |
| 291171 | M4 × 0.7 · STD+1 | OH4 | 8.4 | 52 | 5 | TP-Coating |
| 291271 | M4 × 0.7 · STD+2 | OH5 | 8.4 | 52 | 5 | TP-Coating |
| 291072 | M5 × 0.8 · STD | OH3 | 9.6 | 60 | 5.5 | TP-Coating |
| 291172 | M5 × 0.8 · STD+1 | OH4 | 9.6 | 60 | 5.5 | TP-Coating |
| 291272 | M5 × 0.8 · STD+2 | OH5 | 9.6 | 60 | 5.5 | TP-Coating |
| 291073 | M6 × 1 · STD | OH3 | 12 | 62 | 6 | TP-Coating |
| 291173 | M6 × 1 · STD+1 | OH4 | 12 | 62 | 6 | TP-Coating |
| 291273 | M6 × 1 · STD+2 | OH5 | 12 | 62 | 6 | TP-Coating |
| 291084 | M8 × 1 · STD | OH3 | 12 | 70 | 6.2 | TP-Coating |
| 291184 | M8 × 1 · STD+1 | OH4 | 12 | 70 | 6.2 | TP-Coating |
| 291074 | M8 × 1.25 · STD | OH3 | 15 | 70 | 6.2 | TP-Coating |
| 291174 | M8 × 1.25 · STD+1 | OH4 | 15 | 70 | 6.2 | TP-Coating |
| 291274 | M8 × 1.25 · STD+2 | OH5 | 15 | 70 | 6.2 | TP-Coating |
| 291085 | M10 × 1.25 · STD | OH3 | 15 | 75 | 7 | TP-Coating |
| 291185 | M10 × 1.25 · STD+1 | OH4 | 15 | 75 | 7 | TP-Coating |
| 291075 | M10 × 1.5 · STD | OH3 | 18 | 75 | 7 | TP-Coating |
| 291175 | M10 × 1.5 · STD+1 | OH4 | 18 | 75 | 7 | TP-Coating |
| 291275 | M10 × 1.5 · STD+2 | OH5 | 18 | 75 | 7 | TP-Coating |
| 291086 | M12 × 1.5 · STD | OH3 | 18 | 82 | 8.5 | TP-Coating |
| 291186 | M12 × 1.5 · STD+1 | OH4 | 18 | 82 | 8.5 | TP-Coating |
| 291076 | M12 × 1.75 · STD | OH4 | 21 | 82 | 8.5 | TP-Coating |
| 291176 | M12 × 1.75 · STD+1 | OH5 | 21 | 82 | 8.5 | TP-Coating |
| 291276 | M12 × 1.75 · STD+2 | OH6 | 21 | 82 | 8.5 | TP-Coating |
| 291302 | M14 × 2 · STD | OH2 | 24 | 88 | 10.5 | TP-Coating |
| 291303 | M14 × 2 · STD+1 | OH3 | 24 | 88 | 10.5 | TP-Coating |
| 291304 | M14 × 2 · STD+2 | OH4 | 24 | 88 | 10.5 | TP-Coating |
| 291312 | M16 × 2 · STD | OH2 | 24 | 95 | 12.5 | TP-Coating |
| 291313 | M16 × 2 · STD+1 | OH3 | 24 | 95 | 12.5 | TP-Coating |
| 291314 | M16 × 2 · STD+2 | OH4 | 24 | 95 | 12.5 | TP-Coating |
| 291323 | M18 × 2.5 · STD | OH3 | 30 | 100 | 14 | TP-Coating |
| 291324 | M18 × 2.5 · STD+1 | OH4 | 30 | 100 | 14 | TP-Coating |
| 291325 | M18 × 2.5 · STD+2 | OH5 | 30 | 100 | 14 | TP-Coating |
| 291333 | M20 × 2.5 · STD | OH3 | 30 | 105 | 15 | TP-Coating |
| 291334 | M20 × 2.5 · STD+1 | OH4 | 30 | 105 | 15 | TP-Coating |
| 291335 | M20 × 2.5 · STD+2 | OH5 | 30 | 105 | 15 | TP-Coating |
| 291343 | M22 × 2.5 · STD | OH3 | 30 | 115 | 17 | TP-Coating |
| 291344 | M22 × 2.5 · STD+1 | OH4 | 30 | 115 | 17 | TP-Coating |
| 291345 | M22 × 2.5 · STD+2 | OH5 | 30 | 115 | 17 | TP-Coating |
| 291353 | M24 × 3 · STD | OH3 | 36 | 120 | 19 | TP-Coating |
| 291354 | M24 × 3 · STD+1 | OH4 | 36 | 120 | 19 | TP-Coating |
| 291355 | M24 × 3 · STD+2 | OH5 | 36 | 120 | 19 | TP-Coating |
| 291361 | No.4-40 UNC · STD | OH1 | 15 | 44 | 3 | TP-Coating |
| 291362 | No.4-40 UNC · STD+1 | OH2 | 15 | 44 | 3 | TP-Coating |
| 291363 | No.4-40 UNC · STD+2 | OH3 | 15 | 44 | 3 | TP-Coating |
| 291372 | No.6-32 UNC · STD | OH2 | 9.5 | 48 | 4 | TP-Coating |
| 291373 | No.6-32 UNC · STD+1 | OH3 | 9.5 | 48 | 4 | TP-Coating |
| 291374 | No.6-32 UNC · STD+2 | OH4 | 9.5 | 48 | 4 | TP-Coating |
| 291382 | No.8-32 UNC · STD | OH2 | 9.5 | 52 | 5 | TP-Coating |
| 291383 | No.8-32 UNC · STD+1 | OH3 | 9.5 | 52 | 5 | TP-Coating |
| 291384 | No.8-32 UNC · STD+2 | OH4 | 9.5 | 52 | 5 | TP-Coating |
| 291392 | No.10-24 UNC · STD | OH2 | 12.7 | 60 | 5.5 | TP-Coating |
| 291393 | No.10-24 UNC · STD+1 | OH3 | 12.7 | 60 | 5.5 | TP-Coating |
| 291394 | No.10-24 UNC · STD+2 | OH4 | 12.7 | 60 | 5.5 | TP-Coating |
| 291402 | No.12-24 UNC · STD | OH2 | 12.7 | 60 | 5.5 | TP-Coating |
| 291403 | No.12-24 UNC · STD+1 | OH3 | 12.7 | 60 | 5.5 | TP-Coating |
| 291404 | No.12-24 UNC · STD+2 | OH4 | 12.7 | 60 | 5.5 | TP-Coating |
| 291422 | 1/4-28 UNF · STD | OH2 | 10.9 | 62 | 6 | TP-Coating |
| 291423 | 1/4-28 UNF · STD+1 | OH3 | 10.9 | 62 | 6 | TP-Coating |
| 291424 | 1/4-28 UNF · STD+2 | OH4 | 10.9 | 62 | 6 | TP-Coating |
| 291413 | 1/4-20 UNC · STD | OH3 | 15.2 | 62 | 6 | TP-Coating |
| 291414 | 1/4-20 UNC · STD+1 | OH4 | 15.2 | 62 | 6 | TP-Coating |
| 291415 | 1/4-20 UNC · STD+2 | OH5 | 15.2 | 62 | 6 | TP-Coating |
| 291442 | 5/16-24 UNF · STD | OH2 | 12.7 | 70 | 6.1 | TP-Coating |
| 291443 | 5/16-24 UNF · STD+1 | OH3 | 12.7 | 70 | 6.1 | TP-Coating |
| 291444 | 5/16-24 UNF · STD+2 | OH4 | 12.7 | 70 | 6.1 | TP-Coating |
| 291433 | 5/16-18 UNC · STD | OH3 | 16.9 | 70 | 6.1 | TP-Coating |
| 291434 | 5/16-18 UNC · STD+1 | OH4 | 16.9 | 70 | 6.1 | TP-Coating |
| 291435 | 5/16-18 UNC · STD+2 | OH5 | 16.9 | 70 | 6.1 | TP-Coating |
| 291462 | 3/8-24 UNF · STD | OH2 | 12.7 | 75 | 7 | TP-Coating |
| 291463 | 3/8-24 UNF · STD+1 | OH3 | 12.7 | 75 | 7 | TP-Coating |
| 291464 | 3/8-24 UNF · STD+2 | OH4 | 12.7 | 75 | 7 | TP-Coating |
| 291453 | 3/8-16 UNC · STD | OH3 | 19.1 | 75 | 7 | TP-Coating |
| 291454 | 3/8-16 UNC · STD+1 | OH4 | 19.1 | 75 | 7 | TP-Coating |
| 291455 | 3/8-16 UNC · STD+2 | OH5 | 19.1 | 75 | 7 | TP-Coating |
| 291483 | 1/2-20 UNF · STD | OH3 | 15.2 | 85 | 9 | TP-Coating |
| 291484 | 1/2-20 UNF · STD+1 | OH4 | 15.2 | 85 | 9 | TP-Coating |
| 291485 | 1/2-20 UNF · STD+2 | OH5 | 15.2 | 85 | 9 | TP-Coating |
| 291473 | 1/2-13 UNC · STD | OH3 | 23.4 | 85 | 9 | TP-Coating |
| 291474 | 1/2-13 UNC · STD+1 | OH4 | 23.4 | 85 | 9 | TP-Coating |
| 291475 | 1/2-13 UNC · STD+2 | OH5 | 23.4 | 85 | 9 | TP-Coating |
| 291493 | 5/8-11 UNC · STD | OH3 | 27.7 | 95 | 12 | TP-Coating |
| 291494 | 5/8-11 UNC · STD+1 | OH4 | 27.7 | 95 | 12 | TP-Coating |
| 291495 | 5/8-11 UNC · STD+2 | OH5 | 27.7 | 95 | 12 | TP-Coating |
| 291512 | 3/4-16 UNF · STD | OH2 | 19.1 | 105 | 14 | TP-Coating |
| 291513 | 3/4-16 UNF · STD+1 | OH3 | 19.1 | 105 | 14 | TP-Coating |
| 291514 | 3/4-16 UNF · STD+2 | OH4 | 19.1 | 105 | 14 | TP-Coating |
| 291503 | 3/4-10 UNC · STD | OH3 | 30.5 | 105 | 14 | TP-Coating |
| 291504 | 3/4-10 UNC · STD+1 | OH4 | 30.5 | 105 | 14 | TP-Coating |
| 291505 | 3/4-10 UNC · STD+2 | OH5 | 30.5 | 105 | 14 | TP-Coating |
| 291523 | 7/8-9 UNC · STD | OH3 | 33.9 | 115 | 17 | TP-Coating |
| 291524 | 7/8-9 UNC · STD+1 | OH4 | 33.9 | 115 | 17 | TP-Coating |
| 291525 | 7/8-9 UNC · STD+2 | OH5 | 33.9 | 115 | 17 | TP-Coating |
| 291533 | 1-8 UNC · STD | OH3 | 38.1 | 125 | 20 | TP-Coating |
| 291534 | 1-8 UNC · STD+1 | OH4 | 38.1 | 125 | 20 | TP-Coating |
| 291535 | 1-8 UNC · STD+2 | OH5 | 38.1 | 125 | 20 | TP-Coating |
Full dimensions, sizes and part numbers are in the spec sheet. Download the PDF for the complete table.
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