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SCREW-TYPE TOOLS<br />
Screw-type Car Jack<br />
Mechanical device used to elevate the end of a car by a system of ratchets, gears, and screws. The screw-type car jack is a first class lever.

Fphoto-50760102B-3JY.jpg

SCREW-TYPE TOOLS
Screw-type Car Jack
Mechanical device used to elevate the end of a car by a system of ratchets, gears, and screws. The screw-type car jack is a first class lever.

Copyright:© 2001 Jeff J. Daly - Fundamental Photographs

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