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- Arbor diameter is .750 inches
- Works on all BT30 machines with Dual Contact Spindles
- Compatible with BIG-PLUS® spindles
- All critical tool holder 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
- Nose Diameter is 1.73 inches
- Concentricity is less than .0002 at face and arbor
- Tool holder is coolant thru (coolant thru arbor screw not supplied). Read more here Shell Mill Holder FAQ
- Lock screw thread is 3/8-24
- Includes large head 3/8-24 lock screw pictured and a standard 3/8-24 x 1.0 SHCS
- Width of removable drive keys are .312 inches
- Rear thread for pull stud is M12 X 1.75
- MariTool Part# is BT30-FMA.750-2.5D
*BIG-PLUS® is a trademark of Daishowa Seiki Kabushiki Kaisha; Big Daishowa Seiki Co., Ltd., Corp.
Compatible with BIG-PLUS® spindles, but not licensed.
