3rd Hand Axle Locker Tool by JIMS®. Have you noticed, as you are torquing down the axle nut after you set the proper belt tension, (Deflection) that the welded axle nut will move to the low side of adjuster cam? This movement will allow the belt to lose adjustment. Now with the ” JIMS® 3rd Hand Axle Tool”, you will not need to find a helper to hold the nut or yourself having to reach around the tire and hold the nut from moving. Just place this tool over the welded nut on left side with the neck portion of the tool resting over the swing arm. Hand screw theadjusting screw to take up any slack in tool. Torque the axle nut from the right side knowing the welded nut will not turn allowing the belt to lose it’s adjustment.