Precision Machined Slide Bar – Eliminates movement in the front jaw regardless of opened distance Enclosed Spindle – Keeps lubricants in and contaminants out for smooth operation Needle Roller Thrust Bearing -- Easier to apply & release greater clamping force 60,000 psi Ductile Iron Movable Jaw & Base – Greater durability with lighter weight material Large Anvil Work Surface – Accommodates a wide range of striking needs