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Manufacturer: Crain

This unique threaded pushrod design provides all the power of dog and-ratchet jacks, but without the backlash or dog breakage problems. With every turn of the handle, this jack holds and will not give. Adjusts for length quickly with the push of a button. Works anywhere along walls, or fastens down for use in the middle of the room. Provides up to 2000 lbs. of force to move the planks as necessary. #670