Sleeveless (Split Mandrel) Tooling
The WCI patented split-mandrel process, as introduced in 1983, does not use a disposable sleeve. Instead, it uses an automatically lubricated, longitudinally split mandrel, allowing it to partially collapse to facilitate insertion into the hole. After insertion, a small pilot is pushed through the inner diameter of the mandrel, retaining the splits of the mandrel in a solid position as it is withdrawn back through the hole.
Scroll to find the proper final hole/start hole combination. Click on the link to view the proper tooling.
| Nominal Hole Size | Mandrel Tool Code | Start Hole Min | Start Hole Max | Final Hole Min | Final Hole Max | |
| 5/32 | 4-2 | 0.140 | 0.142 | 0.1709 | Get More Specs | |
| 11/64 | 4-3 | 0.155 | 0.157 | 0.1864 | Get More Specs | |
| 3/16 | 6-0 | 0.170 | 0.172 | 0.1994 | Get More Specs | |
| 13/64 | 6-1 | 0.183 | 0.185 | 0.2149 | Get More Specs | |
| 7/32 | 6-2 | 0.198 | 0.200 | 0.2304 | Get More Specs | |
| 15/64 | 6-3 | 0.213 | 0.215 | 0.2464 | Get More Specs | |
| 1/4 | 8-0 | 0.228 | 0.230 | 0.2619 | Get More Specs | |
| 17/64 | 8-1 | 0.243 | 0.245 | 0.2774 | Get More Specs | |
| 9/32 | 8-2 | 0.258 | 0.260 | 0.2929 | Get More Specs | |
| 19/64 | 8-3 | 0.273 | 0.275 | 0.3089 | Get More Specs | |
| 5/16 | 10-0 | 0.289 | 0.291 | 0.3247 | Get More Specs | |
| 21/64 | 10-1 | 0.304 | 0.306 | 0.3399 | Get More Specs | |
| 11/32 | 10-2 | 0.319 | 0.321 | 0.3554 | Get More Specs | |
| 23/64 | 10-3 | 0.334 | 0.336 | 0.3714 | Get More Specs | |
| 3/8 | 12-0 | 0.350 | 0.352 | 0.3869 | Get More Specs | |
| 25/64 | 12-1 | 0.365 | 0.367 | 0.4024 | Get More Specs | |
| 13/32 | 12-2 | 0.380 | 0.382 | 0.4179 | Get More Specs | |
| 27/64 | 12-3 | 0.396 | 0.398 | 0.4339 | Get More Specs | |
| 7/16 | 14-0 | 0.411 | 0.413 | 0.4490 | Get More Specs | |
| 29/64 | 14-1 | 0.426 | 0.428 | 0.4699 | Get More Specs | |
| 15/32 | 14-2 | 0.441 | 0.443 | 0.4804 | Get More Specs | |
| 31/64 | 14-3 | 0.456 | 0.458 | 0.4959 | Get More Specs | |
| 1/2 | 16-0 | 0.470 | 0.472 | 0.5119 | Get More Specs | |
| 33/64 | 16-1 | 0.486 | 0.488 | 0.5274 | Get More Specs | |
| 17/32 | 16-2 | 0.501 | 0.503 | 0.5429 | Get More Specs | |
| 35/64 | 16-3 | 0.516 | 0.518 | 0.5579 | Get More Specs | |
| 9/16 | 18-0 | 0.532 | 0.534 | 0.5739 | Get More Specs | |
| 37/64 | 18-1 | 0.548 | 0.550 | 0.5894 | Get More Specs | |
| 19/32 | 18-2 | 0.563 | 0.565 | 0.6049 | Get More Specs | |
| 39/64 | 18-3 | 0.578 | 0.580 | 0.6209 | Get More Specs | |
| 5/8 | 20-0 | 0.593 | 0.595 | 0.6364 | Get More Specs | |
| 41/64 | 20-1 | 0.608 | 0.610 | 0.6519 | Get More Specs | |
| 21/32 | 20-2 | 0.623 | 0.625 | 0.6674 | Get More Specs | |
| 43/64 | 20-3 | 0.638 | 0.640 | 0.6844 | Get More Specs |