Splined Top Drive Saver Subs

Featuring precision-machined splines, these saver subs are designed for top drives that require a locking mechanism or specialized torque transmission. They ensure a secure fit while providing the same critical thread protection as standard top drive saver subs. MADE IN USA by M&M International, these subs meet API 7-1 specs, are available in all thread and end connection types, and can be modified to meet individual customer specifications.