PSM - Progressive Link Hydraulic Thumbs

Provides superior range of motion, cylinder and tensional stability. Dual progressive links give greater range of travel, eliminates thumb body twist, and provides even gripping power at both sides of the thumb, stores compactly. Like all PSM thumbs, this design uses T-1 steel components and is fully line bored with hardened pins and bushings for ultimate strength and longevity. Anti-torsion progressive links are used along with a dual cushioned cylinder to absorb shock and wear on your machine.