Product Description
Manufacturer part number: 3900-8604
- Pro-Series High Speed, Balanced ER-16 BT40 Spring Collet Chuck With Hex Nut
- Made of 20CrMnTi alloy steel
- Electrolysis nickel coating
- Balanced to 18,000 RPM
- Tolerance is .0003" Maximum
- Superior Finish & Craftsmanship
- 2.76" Gage Length
- Nut type is hex.
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