Extreme Edge gear box placement makes this the most versatile binder Speedbinders has produced. Grease zerk is standard. You also receive a grease zerk protection ring for long life (customer installed). To offer some clarity, the hooks are marked 3/8 – 1/2 but this binder conveniently works with 5/16 chain as well. The ultimate for the Steel Hauler / Big Chain Rental Companies / Construction / Excavating / Bobcats / Heavy Equipment . 2” longer handle than our standard arm, Zinc coated rings, hooks and post threads. We are 25 to 1 gear reduced on this model. Long handle off set to bring the gear set closer to the operator for easier operation. The handle is a reaction bar. Needs to be in contact with the floor or steel for proper tension retention. Item not warrantied if impact is used for tightening.