The 4-Prong Easy Drive Center features 4 prongs for strong grabbing power on large projects and soft woods while turning between centers. There is no need to remove your chuck from the lathe, quickly swap from spindle turning to chuck turning. Features a spring-loaded pin for positive alignment and holding power. Made from nickel-plated steel for superior quality, and built to last. Mounts to most 4-jaw chucks. 100% Made in USA.