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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
ER collet chuck with the flexibility that can clamp drill, reamers,end mills and taps.
The shank and keyless drill chuck are combined together so that to avoid the drill chuck slipping out for heavy-duty and high-speed cutting.
Shank body standard: MAS 403 and B6339
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