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CAT40 C.N.C. End Mill Holders
- Caterpillar v-flange end mill Holders
- Produced According to AT3 Specifications.
- Made of alloy forged steel for long durable service life.
- Hardened to HRC 52-56 and ground to ensure maximum accuracy
- End mill socket T.I.R.<0.0002".
- Through spindle coolant capability.
- Retention knobs are sold separately.
- Drawbar Thread: CAT-40 5/8"-11 & CAT50 1"-8.
| Item | d | L1 | L | D | D1 | L2 | L3 |
| 6780-7024 | 1/4" | 2-1/2" | 5-3/16" | 13/16" | 1-3/4" | 25/32" | - |
| 6780-7025 | 3/16" | 2-1/2" | 5-3/16" | 3/4" | 1-3/4" | 9/16" | - |
| 6780-7026 | 3/8" | 2-1/2" | 5-3/16" | 1-1/8" | 1-3/4" | 25/32" | - |
| 6780-7027 | 1/2" | 2-5/8" | 5-5/16" | 1-3/4" | 1-3/4" | 7/8" | - |
| 6780-7028 | 5/8" | 3-3/4" | 6-7/16" | 1-3/4" | 1-3/4" | 15/16" | - |
| 6780-7029 | 3/4" | 3-3/4" | 6-7/16" | 1-3/4" | 1-3/4" | 1" | - |
| 6780-7030 | 7/8" | 4" | 6-11/16" | 2-3/64" | 1-3/4" | 1-1/16" | 7/8" |
| 6780-7031 | 1" | 4" | 6-11/16" | 2-31/64" | 1-3/4" | 1-1/8" | 1" |
| 6780-7032 | 1-1/4" | 4-1/8" | 6-13/16" | 2-1/2" | 1-3/4" | 1-1/8" | 1" |



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