Removes many different four pin lock nuts on Honda powered Motorcycles ATV?s and Tractors. Convenient 20mm and 24mm sizes on one 1/2 in. drive socket. Heat treated steel construction for dependability and long life. 20mm removes the Counter Balancer Nut, Clutch Hub Nut, Crank Shaft Nut, and Oil Filter Rotor Nut. 24mm remove the Oil Filter Rotor Lock Nut, and Clutch Hub Lock Nut. Fit the following:. CRF50, XR200, XR200R, XR250L, XR250R, CL, CT, S, L, XL, SL models, Z50, XR50, ATC70, ATC90, C70, CL70,. CRF70, CT70, SL70, TRX70, XL70, XR70, TRX90, 50cc, 70cc, 90cc, 90cc, 110cc, 125cc ATV, dirt bikes, and go karts.