Nut Driver - Clutch Adjustment - Harley-Davidson - Through-hole allows access with hex wrench to hold clutch adjuster screw while simultaneously tightening the adjuster lock nut - Deep socket allows tool to recess into clutch basket and can be driven with 11/16" combination wrench or adjustable wrench - Compact design fits easily in a saddlebag or tool wrap - For use on all '98 and later Big Twin Harley-Davidson models with an 11/16" clutch adjuster lock nut (excluding applications with hydraulic clutches).