CAT40 ER20 Collet Chuck, DIN Form AD/B - Coolant Through
| Part Name | D | D1 | L | L1 | L2 |
| CAT40 ER20-2.50", DIN Form AD/B | 1.34" | 1.34" | 2.50" | 1.04" | 0.91" |
| CAT40 ER20-3.50", DIN Form AD/B | 1.34" | 1.34" | 3.50" | 1.04" | 1.91" |
| CAT40 ER20-4.00", DIN Form AD/B | 1.34" | 1.34" | 4.00" | 1.04" | 2.42" |
| CAT40 ER20-6.00", DIN Form AD/B | 1.34" | 1.34" | 6.00" | 1.04" | 4.42" |