The LockNLube DynaBoost Dual-Mode Grease Gun features a patented dual-piston design that automatically shifts from high-volume output to up to 12,000 PSI when a clogged grease fitting is encountered, then returns to high-volume operation once the clog is cleared. There are no switches to operate or separate grease fitting cleaning tools required. The LockNLube® Grease Coupler stays connected throughout the process, eliminating unnecessary interruptions. A green indicator pin confirms when high-pressure mode is engaged, while clog clearance is built into every stroke, helping technicians grease equipment faster and more efficiently.