Speed up raising and lowering scissor jacks on trailers. Use this universal 3/4" socket with your cordless drill to extend and retract scissor jacks up to 10 times faster than hand cranking. Flattened shank will not slip. Fits all standard scissor jacks and all 3/8" drills or larger. Made of super-tough, zinc-plated steel. Mfr. lifetime warranty.