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- This holder accepts all 1.0 shank tooling
- 1.00" bore can accept shank 2.375" deep
- Works on all BT30 machines with Dual Contact Spindles
- Compatible with BIG-PLUS® spindles
- All critical surfaces precision ground
- Made from alloy steel hardened to 54 - 56rc
- Balanced to G2.5 at 20,000 rpms
- Gage length is 2.5 inches
- Concentricity is less than .0001
- Rear thread for pull stud is M12 X 1.75
- MariTool Part# is BT30-EM1.0-2.5D
*BIG-PLUS® is a trademark of Daishowa Seiki Kabushiki Kaisha; Big Daishowa Seiki Co., Ltd., Corp.
Compatible with BIG-PLUS® spindles, but not licensed.