Tool Aid SG SGT63000 Strut Coil Spring Tool (The Strutter 2&Acirc;, Macpherson) With Acme threads and economically priced Quickly and easily work on the MacPherson Struts found on virtually all modern domestic and imported vehicles Consists of two cold headed bolts made of chromium molybdenum alloy steel - the nuts are Grade 5 Use with impact wrench ON or OFF the car