In order to expose sufficient surface for mounting heat transfer devices on some manufacturers' objectives, it is necessary to remove the outer decorative collar which contains written information such as magnification, N.A., etc. The objective wrench is designed to enable the user to isolate stress applied to an objective when removing this collar. The rotational force applied to the objective must be applied exclusively to the mounting threads and the cover. The wrench is designed with two thread sizes (0.8" x 36 TPI (RMS) and 25mm x 0.75 mm/thread). It will enable the user to securely bind these threads and provide sufficient leverage for removal of the cover.
For full web page, please see http://www.autom8.com/temp-obj-heating.html
Download a brochure at http://www.autom8.com/pdfs/temperature/Objective-Heat-Cool.pdf