- R8 to ER-40 collet chuck
- Made of 20CrMnTi alloy steel
- Electrolysis nickel coating
- Drawbar thread: R8 – 7/16″-20
- Max. RPM: 8,000, runout is 0 .0002″
R8 to ER-40 professional grade collet chuck. Premium 20CrMnTi alloy steel hardened and all ground body for extended tool life. Has a superior finish (electrolysis nickel coating).
The maximum RPM is 8,000 and the maximum runout is 0.0002″ (0.0051 mm). The R8 drawbar thread is 7/16″-20.
ER-40 collets have a range of 1/8″ to 1″ (3.0 mm to 26.0 mm).
Spanner wrench is not included. See related products if you need a wrench to fit this collet chuck.
*Collet must be assembled into a collet chuck nut before inserting into the collet chuck.
