This clever little adaptor will enable you to use ER32 collets in your existing 5C fixtures. The adaptor has 5C standard 1.05" x 24tpi internal, and 1.230" x 20tpi external drawbar threads and a 1" internal bore up to the back of the ER32 taper. Because the adaptor has a collet chuck on the nose, it can only be locked into draw bar type fixtures such as:
* 5C Collet Fixture Type C
* 5C Collet Block Set
* 5C Indexing Heads not already fitted with an ER32 nut and adaptor.
Also compatible with 5C Collet Adjustable Backstop. The adaptor is not suitable for front locking fixtures like 5C Collet Fixture Type B.
The adaptor is not required for Stevenson's 5C Indexing Head with ER32 Nut and Adaptor.