Tool is made from .750" billet alum. with a truss design that offers maximum rigidity and lightening pockets to offer the racer a strong lightweight tool. Handle is 5.00" long for leverage with an Acme thread to offer the user speedy removal and installs with a ball bearing under the surface of the alum. part that goes up against the valve so there is no marring on the valves.
Spring compressor comes with three cages to fit valve springs that range from 1.250" all the way up to 1.675" that allows the tool to be used with most all valve springs. The jaw capacity is 8.375" with a throat depth of 5.00 " which is enough for even the hard to fit Big Chief and Hemi heads. Tool is capable of compressing up to 1000lb. springs with no issues.