Hein-Werner HW93662 10-Ton Air Over Manual Hydraulic Service Jack is quick, reliable and convenient. Ideal for lifting trucks, trailers and buses by the axle, differential, or frame. The dual piston action provides speed to contact and power to lift. Long chassis makes for easy access of hard to reach points. Jack handle adjusts to three pumping positions. Sealed hydraulic unit keeps out grit, grime, and moisture for jacks life longevity. Large full swivel saddle and ball bearing caster make positioning easy. Cast lift arm for heavy loads. Proudly MADE IN USA.