Features 2 of our most popular spring compressors packed in a heavy-duty molded case. ATD-7585 Master MacPherson Strut Tool Broad spring contact ACME threaded rod Built-in detent pins to help lock the coil in place Designed to compress most sizes of MacPherson strut springs Allows quick compression of the coil spring to replace the shock absorber or spring set Also allows for repairs on bent struts, strut tubes and damaged pieces Forged construction for repetitive use ATD-7549 Coil Spring Compressor Compresses coil springs for installation and removal of springs and spacers Strong steel jaws securely hook into coil spring Fits most American and some imported cars and light trucks Does not work on AMC and Ford with upper coil spring