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- Works on all HSK50A machines
- Precision ground, all diameters concentric within 3 microns
- Made from hardened alloy steel
- Calibration certificate is included
- Arbor diameter is 40mm in diameter
- Gage length is 250mm
- This test arbor is suitable for calibrating your machine spindle
- Protective case included
- MariTool Part# is HSK50A-TA40-250