Valve Keeper Remover and Installer Kit Screwdriver Set contains the following sizes:

Set contains the following sizes: Fractional Sizes: 7/16

You will have no worries when using this tool

Features and Benefits of 1/2" Drive x 13mm Standard

Die cast aluminum body

Valve Keeper Remover and Installer Kit Screwdriver Set contains the following sizes:Valve Keeper Remover and Installer Kit Features and Benefits Fits most Overhead Valve applications Smaller size fits new Chrysler New World Engine and some Toyota four cylinders Comes in a handy plastic case Can work on the car or bench Magnet in tool body captures keepers for quick removal and valve disassembly Quickly removes and installs valve keepers on most overhead valve engines. Works on valve stems from 4. 5 to 7. 5 mm and 5 16" to 3 8".