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1. Material: Allyed case hardened steel, black-finished and precisely grinding
2. Hardness: HRC 56-58
3. T.I.R: ≤0.0002"
4. Carbon depth: 0.016" to 0.047"
5. Projection: 3.15"
6. Collet chuck accepts all ER40 collets
1. CAT NO taper shank is in conformity with AT3 standard
2. Concentricity of the inner and outer cone: 0.0002"
3. ER collet chuck with the flexibility that can clamp drill, reamers, end mills and taps.
4. Rear thread for pull stud is 5/8" - 11
5. Works on all CAT40 machines.
6. Collet Chuck accepts all ER40 collets.
7. Surface blackening treatment.
8. Shank body standard: ANSI B5.50
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