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- Works on all HSK63A 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 300mm +-.0002 inches
- This test arbor is suitable for calibrating your machine spindle
- Protective case included
- MariTool Part# is HSK63A-TA40-300