Q. I have an older Forster Original Case Trimmer. In order to use the #4 collet, what size does the Case Trimmer Collet Housing need to be opened up to? Will my trimmer still work properly with collets #1, 2 and 3?
A. The Collet Housing must be opened to .610” in order to accept the #4 Case Trimmer collet. We will do this at the factory at no charge or you may do it on a lathe. Yes, the modification (opening to .610”) of the Case Trimmer Housing will not affect the use of collets #1, 2 and 3.
Please note that Original Case Trimmers manufactured before June 2010, require the Collet Housing enlarged to accept the #4 collet; those manufactured after this date already have this modification.
Posted in: Case Trimmers & Accessories FAQs