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1. Material: Alloy case hardened steel, black-finished and precisely grinded.
2. Hardness: HRC 56-58
3. Carbon depth: 1/32" ± 1/64"
4. Runout: < 0.0002"
5. Concentricity of the inner and outer cone: 0.0002"
6. Shank body standard: MAS 403 and B6339
Alloy case hardened steel, black-finished and precisely grinded.
BT NO taper shank is in conformity with AT3 standard.
Default balancing design.
Shank body standard: MAS 403 and B6339
Rear thread for pull stud is M24 x 3
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