Gearcase Service Tool

The G.S.T is a fast, effective tool for removing and installing lower unit oil drain plugs.
Develops 10 times more torque than a screwdriver using a "T" handle grip.
The driver tip design prevents slipping and damage to the oil plug.
The G.S.T. will even remove worn out screws that a screwdriver cannot.

Works on all engine manufacturers, from Outboards to Sterndrives.