The Finished Bore is one of two options available on the Browning shaft mount reducer. The most common option is one that utilizes the Browning^® TorqTaper^® reversible bushing system. This system provides the most flexibility for installation. The second output option is the Finished Bore. Some users prefer this option as it eliminates the need for a bushing. To use this option, the user simply selects the appropriate reducer to fit the equipment shaft.

An example of the nomenclature for this product is 215SMFP15. “F” designates that the reducer is to have an output bore machined to a user-defined specification (in 1/16″ increments).