detuner

Hey! I happen to have a small problem with one tuner of my FNA Jazzman. Inspired by , I intend to change for these, and add a D-Tuner. I noticed there are two references, 3/8" and 1/2". HE6Y - 3/8'' Y Key Ultralite X-tender > Store > Hipshot Products HE6Y - 1/2'' Y Key Ultralite X-tender...