About this product
Bolton Tools A0303021 End Mill Holder NMTB50-EM1/4-0.69
End Mill Holder NMTB-EM Descriptipn:
- Finish: Black Oxide
- Runout: .005mm/.0002in TIR
- Works on all NMTB30 NMBT40NMBT50 machines
- All critical tool holder surfaces precision ground
- Made from alloy structural steel hardened to 48 - 52rc
- 8000 rpms
- Coolant thru capability
- ForNMBT30-EM: Rear thread for pull stud is 1/2"-13
- For NMBT40-EM: Rear thread for pull stud is 5/8"-11
- For NMBT50-EM: Rear thread for pull stud is 1"- 8
| Order No. | Type | L | L1 | L2 | L3 | d1 | T |
|---|---|---|---|---|---|---|---|
| A0303021 | NMTB50-EM1/4-0.69 | 7.5 | 2.5 | 0.56 | 0.25 | 1/4-20 |