The LSM TQ-100-3 is a combination precision torque wrench and valve adjustment tool. It simplifies precision valve las settings by properly torquing adjuster nuts every time. One tool does all "shaft" style rocker systems.Comes with 1/8, 5/32, and 3/16 Hex KeysAccepts any standard 3/8 drive socket. (Socket not included)Pit Stop USA offers LSM Racing Products Valve Lash Adjusting Torque Wrench TQ-100-3 at low everyday prices. Be sure to check out all of our products from LSM Racing Products including LSM Racing Products Engine Tools,Valve Lash Wrenches.