Deluxe Noid Lite and GM Signal Test Light Set AST7898 Air Filter Cutting edge folds into the

Cutting edge folds into the handle for safe storage

1/4" drive for 1/4" hex shank bits

Thick pushing plate (3/16") and wide

rubber and many other applications

Simply use a hammer with the driver and appropriate disc to install frost plugs ranging from 1" to 2-3/8" in diameter

Deluxe Noid Lite and GM Signal Test Light Set AST7898 Air Filter Cutting edge folds into theDeluxe Noid Lite and GM Signal Test Light Set Features and Benefits: Economic way to check electronic fuel injection (EFI) signals Quickly and easily checks for systems of GM TBI, Bosch PFI Ford TBI, GM PFI, Geo TBI and GM SCPI To test just disconnect the fuel injectors, plug the Noid Lite into injector wiring harness then crank the engine Normal voltage is indicated by flashing light which is visible from passenger compartment Blow molded case for