US Tool & Cutter Co. 87391-R Grooving Tool Holder

The US Tool & Cutter Co. 87391-R Grooving Tool Holder (MPN: 87391-R) is a Groovall-series indexable tool holder designed to securely retain inserts for precision grooving and cutting on lathes and turning centers. It is built for grooving, cut-off, and profiling operations in metalworking systems, helping maintenance teams and production shops sustain machining accuracy and consistent material removal during cycle times. The tool supports insert retention with indexable inserts, featuring a 0.211 in insert width compatibility to align with standard grooving inserts used in many operations. Manufactured in the United States by US Tool & Cutter Co., this holder is intended for replacement, repair, and tooling upgrades to help minimize downtime and preserve productive output in precision machining environments. It remains compatible with a range of industrial equipment that uses Groovall-indexable holders and is known for dependable performance in detailed turning and finishing tasks.