Uni-Throater Shank Extension

The Uni-Throater shank extension fits the threads on all Uni-Throater, Uni-Necker, and Uni-Throater/Neckers. The extension converts each tool to a 3/8" (.375" / 9.5mm) square drive, compatible with our Reamer T-Handle and similar square drive implements.

NOTE: All PTG Reamers and Cutting Tools are designed to work with petroleum-based lubricant. Water-based lubricant can give acceptable results, however the life of the tool will be reduced. For best results use petroleum-based lubricant.