Product Description
Manufacturer part number: 3901-5069
- Pro R8 ER-40 Collect Chuck with Drawbar End
- Made of 20CrMnTi alloy steel
- Electrolysis nickel coating
- Premium hardened & all ground body for extended tool life.
- Thread of Drawbar End: R8- 7/16" -20
- Maximum RPM is 8,000
- T.I.R. <= .0002"
- Superior Finish
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