Spanner Wrench & Thrust Bearing Kit

The Spanner Wrench & Thrust Bearing Kit from UMI PERFORMANCE is a specialized maintenance tool designed for firearm technicians, gunsmiths, and serious shooters who require precision in their work on modern tactical platforms. This kit is essential for accessing and servicing barrel components that need exact torque specifications and specialized tool geometry.

The kit includes a spanner wrench that provides the specific grip geometry necessary to hold barrel components stationary during disassembly and reassembly, preventing tool slip that could damage precision barrels. Additionally, the thrust bearing manages axial load during service operations, protecting both the work surface and the component from excessive pressure concentration. This dual-component design ensures that high-torque operations remain controlled and repeatable.

This kit is ideal for anyone performing barrel work on modern direct-impingement or piston-driven tactical rifles, including AR-15 platforms. Whether you are a law enforcement armorer maintaining duty rifles or a competition shooter optimizing performance, this tool delivers the leverage and bearing support necessary for clean, damage-free service work.