The most popular M2 styli, with ball diameter, length and part number. Use the full guide PDF for every variant.
Part numbers exactly as published; “–” means not available in that size.
| Ball diameter | 1.0 (0.4) | 1.5 (0.06) | 2.0 (0.08) | 2.5 (0.10) | 3.0 (0.12) | 4.0 (0.16) | 5.0 (0.20) | 6.0 (0.24) | 8.0 (0.32) |
|---|---|---|---|---|---|---|---|---|---|
| Length 10 mm | A-5000-7806 | A-5000-7802 | A-5000-7807 | A-5000-7803 | A-5000-3604 | A-5000-4154 | A-5000-4155 | A-5000-4156 | A-5000-4158 |
| 20 mm | – | – | A-5000-3603 | A-5000-7804 | A-5000-4160 | A-5000-4161 | – | – | – |
| Ball diameter | 0.3 (0.012) | 0.5 (0.020) | 0.7 (0.028) | 1.0 (0.04) | 1.5 (0.06) | 2.0 (0.08) | 2.5 (0.10) | 3.0 (0.12) | 4.0 (0.16) | 5.0 (0.20) |
|---|---|---|---|---|---|---|---|---|---|---|
| Length 10 mm | A-5000-7800 | A-5000-7805 | A-5000-7801 | A-5003-1325 | – | – | – | – | – | – |
| 20 mm | – | A-5003-1345 | A-5003-0577 | A-5000-7808 | A-5003-0034 | A-5003-3822 | A-5003-1896 | A-5003-0938 | A-5003-1029 | A-5003-0046 |
| 30 mm | – | – | – | A-5000-8663 | A-5003-0035 | A-5003-0036 | A-5003-0038 | A-5003-0040 | A-5003-0043 | A-5003-0047 |
| 40 mm | – | – | – | – | – | A-5003-0037 | A-5003-0039 | A-5003-0041 | A-5003-0044 | A-5003-0048 |
| 50 mm | – | – | – | – | – | – | – | A-5003-0042 | A-5003-0045 | A-5003-0049 |
| Ball diameter | 3.0 (0.12) | 4.0 (0.16) | 5.0 (0.20) | 6.0 (0.24) |
|---|---|---|---|---|
| Length 30 mm | A-5003-4177 | A-5003-1370 | A-5003-4779 | A-5003-4780 |
| 50 mm | A-5003-0064 | A-5003-0065 | A-5003-0066 | A-5003-0470 |
| Ball diameter | 4.0 (0.16) | 5.0 (0.20) | 6.0 (0.24) |
|---|---|---|---|
| Length 30 mm | A-5003-4241 | A-5003-4781 | A-5003-4782 |
| 50 mm | A-5003-2285 | A-5003-2286 | A-5003-2287 |
| 75 mm | A-5003-4784 | A-5003-4785 | A-5003-4786 |
| 100 mm | A-5003-2289 | A-5003-2290 | A-5003-2291 |
| Length | 5.0 (0.20) | 10.0 (0.40) | 20.0 (0.79) | 30.0 (1.19) | 40.0 (1.58) | 50.0 (1.97) | 70.0 (2.76) | 90.0 (3.55) |
|---|---|---|---|---|---|---|---|---|
| Stainless steel | A-5004-7610 | A-5004-7585 | A-5004-7586 | A-5004-7591 | A-5004-7611 | – | – | – |
| Ceramic | – | – | – | A-5003-0070 | A-5003-0071 | A-5003-0072 | – | – |
| Carbon fibre | – | – | – | – | A-5003-2280 | A-5003-2281 | A-5003-2282 | A-5003-2283 |
The simplest form: ball, stem and thread.
Multiple styli on one centre for deep bores and cross-holes.
Thin-sheet holes and tapped-hole centres; ball-ended for full datuming.
Probing grooves and undercuts with a spherical edge.
Thread form, tool setting and application-specific shapes.
