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- Tool Holder accepts all ER40 collets and works on all CAT 40 Machines
- Made from alloy steel hardened to 54 - 56rc.
- Balanced to G2.5 at 20,000 rpms
- Concentricity is less than .0001 at collet face.
- All critical tool holder surfaces precision ground.
- Coolant through capability
- Gage length 3.00 inches
- Internal stop screw and collet nut is included
- Rear thread for pull stud is 5/8–11
- MariTool Part# is CAT40ER40-3.0