The Lisle 36880 Dual Overhead Cam (DOHC) Lock Tool is a specialty cam locking tool designed for adjustable size camshaft sprockets. Made in the United States by Schley Products, this single item tool comes with a manufacturer part number of 12800 and a manufacturer warranty. With a specialty drive type, this tool is essential for automotive maintenance and repair, ensuring proper locking of camshaft sprockets for optimal performance.