I used a White's DFX bar. The lower Minelab shaft slides right in and tightens suffuciently. What I really like about this mod is when I go to use my Sunray 12" coil, it swings so easy. I always like the offset bar as opposed to a straight bar anyway. It gave me quite a bit of adjustment (sliding the unit forward and backward) under the elbow as that portion of the bar is longer than Minelab's. Cheers.