CAT40 ER11 Collet Chuck
| Part Name | Collet | Length | D | D1 | L | L1 | L2 |
| CAT40 ER11-2.5" | ER11 | 2.50" | 0.75" | 0.75" | 2.50" | 0.66" | 0.91" |
| CAT40 ER11-3.5" | ER11 | 3.50" | 0.75" | 0.75" | 3.50" | 0.66" | 1.91" |
| CAT40 ER11-4" | ER11 | 4.00" | 0.75" | 0.75" | 4.00" | 0.66" | 2.42" |
| CAT40 ER11-6" | ER11 | 6.00" | 0.75" | 1.10" | 6.00" | 0.66" | 3.30" |
| CAT40 ER11-8" | ER11 | 8.00" | 0.75" | 1.10" | 8.00" | 0.66" | 3.30" |