- ER-20 to JT33 collet chuck
- Compatible with standard Jacobs taper spindles
- Maximum RPM is 8,000
- T.I.R. is <= 0.0002"
- Precision ground & hardened for accuracy and precision
JT33 to ER-20 collet chuck, milling chuck holder.
This collet chuck is hardened and precision ground and has a T.I.R. is <= 0.0002" (0.005 mm). The chuck will hold all ER-20 collets.
ER-20 collets have a range of 1/16″ to 1/2″ (1.0 mm to 13.0 mm).
*Collet must be assembled into a collet chuck nut before inserting into the collet chuck.
