A metric tap with an ANSI shank uses the same tap collet as an inch tap with the same shank diameter. There are some less common all-metric taps, but you often don’t find these anywhere inside the USA, Canada or Mexico.
| Tap size | Shank dia. A | Shank length B | Size of square C | Overall length D |
|---|---|---|---|---|
| M09 | 2.5 (.098″) | 17 | 2.1 x 5 | 25 |
| M1 | 2.5 (.098″) | 18 | 2.1 x 5 | 25 |
| M1.1 | 2.5 (.098″) | 18 | 2.1 x 5 | 25 |
| M1.2 | 2.5 (.098″) | 18 | 2.1 x 5 | 25 |
| M1.4 | 2.5 (.098″) | 21 | 2.1 x 5 | 28 |
| M1.6 | 2.5 (.098″) | 24 | 2.1 x 5 | 32 |
| M1.7 | 2.5 (.098″) | 24 | 2.1 x 5 | 32 |
| M1.8 | 2.5 (.098″) | 24 | 2.1 x 5 | 32 |
| M2 | 2.8(.110″) | 23 | 2.1 x 5 | 32 |
| M2.2 | 2.8(.110″) | 23 | 2.1 x 5 | 32 |
| M2.3 | 2.8(.110″) | 23 | 2.1 x 5 | 32 |
| M2.5 | 2.8(.110″) | 26 | 2.1 x 5 | 36 |
| M2.6 | 2.8 (.110″) | 26 | 2.1 x 5 | 36 |
| M3 | 3.5 (.138″) | 26 | 2.7 x 6 | 36 |
| M3.5 | 4.0 (.157″) | 29 | 3.0 x 6 | 40 |
| M4 | 4.5 (.177″) | 28 | 3.4 x 6 | 40 |
| M4.5 | 6.0 (.236″) | 33 | 4.9 x 8 | 45 |
| M5 | 6.0 (.236″) | 31 | 4.9 x 8 | 45 |
| M6 | 6.0 (.236″) | 34 | 4.9 x 8 | 50 |
| M7 | 6.0 (.236″) | 34 | 4.9 x 8 | 50 |
| M8 | 6.0 (.236″) | 38 | 4.9 x 8 | 56 |
| M9 | 7.0 (.275″) | 38 | 5.5 x 8 | 56 |
| M10 | 7.0 (.275″) | 43 | 5.5 x 8 | 63 |
| M11 | 8.0 (.314″) | 41 | 6.2 x 9 | 63 |
| M12 | 9.0 (.354″) | 48 | 7.0 x 10 | 70 |
| M14 | 11.0 (.433″) | 45 | 9.0 x 12 | 70 |
| M16 | 12.0 (.472″) | 42 | 9.0 x 12 | 70 |
| M18 | 14.0 (.552″) | 48 | 11.0 x 14 | 80 |
| M20 | 16.0 (.629″) | 48 | 12.0 x 15 | 80 |
| M22 | 18.0 (.708″) | 58 | 14.5 x 17 | 90 |
| M24 | 18.0 (.708″) | 68 | 14.5 x 17 | 100 |
| M27 | 20.0 (.787″) | 64 | 16.0 x 19 | 100 |
| M30 | 22.0 (.866″) | 70 | 18.0 x 21 | 110 |
AutoDrill generally offers tapping devices for single spindle operations as well as multiple spindle operations with ER11, ER16, ER20, ER25, ER32 and ER40 spindle types. We also offer TRxx and ASA style spindles as well as custom spindles if needed.