●12" (300mm) Maximum opening ●Tool compresses MacPherson Strut ●Springs on passenger cars & light trucks ●Hardened steel center bolts ●Steel jaws casted for strength ●Works with hand wrench or impact tool ●Services both Straight & Curved Coil Springs ●Includes U-bolts & wing nuts ●Maximum diameter spring that the hooks will accommodate is 0.75" ●Diameter of the rod: 5/8
