Clamp-King GM-6 has a milled sidebar pocket that holds all GM 6 wafer plugs with the sidebar extended. Reverse the tool to hold the sidebar retracted after picking. Holds firmly for removal and replacement of the tumbler spring retainer. The Clamp-King™ also holds the most standard Key-in-Knob cylinders for service. Ideal for holding Medeco cylinders when installing or staking the spring retainers.
