Panel Bushing Mount - Slot Adjust, Single Turn

I bought a keyseater recently and am looking for some assistance figuring the slot depth needed on the guide bushings

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slot 60000 These bushing are hardened throughout to 58 HRC and have a black oxide finish, which come in 3 different sizes KTC D Pins are designed to work in

slot madness instant play These bushing are hardened throughout to 58 HRC and have a black oxide finish, which come in 3 different sizes KTC D Pins are designed to work in