Kit includes Special Edition 855 Vise and B.A.S.H 2 lb Dead Blow Hammer 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