SPANNER NUT SOCKET Socket used for removal and installation of spanner (castle) lock nuts Large end size: 39mm OD x 30.5mm ID x 7mm Pin Width/4 pins Small end size: 26mm OD x 19.9mm ID x 6.5mm Pin Width/4 pins 1/2 inch drive Applications: Kawasaki models Inner Dia.30.5/ Outer Dia.39mm；Inner Dia.20/ Outer Dia.26mm