-DISC- WHEN OUT OF STOCK USE 10129W- 12 TON Hydraulic SHORTY BOTTLE JACK Hydraulic system is protected from internal damage by a patented by-pass mechanism Machined and polished cylinders with die-cut threads provide non-abrasive leak-free, durable performance Fabricated from hard-cast steel with heat-treated critical stress areas Serrated heat-treated saddle provides generous lifting area and secure grip Heat-treated extension screw allows low pick-up height adjustment and maximum lift height U.S. Patented built-in by-pass device protects hydraulic system from overpumping damage Unique cross-type forged release valve assures positive control A wide, rugged base provides stability and strength Critical stress points are reinforced in all models for added durability and dependability Capacity: 12 TON