4-Ton Collision Repair Set Industry standard couplers are interchangeable with leading manufacturer's units.. Single-speed hydraulic hand pump and ram with 4 stroke. Snap together design of extension tubes allows for easy assembly.. Sturdy extension tubes hold up in even the toughest situations.. Automatic overload system on pump protects against damage to equipment.. 1/2-ton hydraulic spreader tool has 2 jaws that spread from 5/8 to 3-3/8.. Includes a sturdy plastic case.. Carries a two-year warranty. 1513B No -