Elora 55mm 3 8 square drive universal joint elora 236 professional quality manufactured from chrome vanadium steel hardened tempered and chrome plated for corrosion protection head swings through 90 176 in both directions spring loaded ball bearing for secure socket holding sold loose br br b manufactured to din 3123 form c iso 3316 specifications b br br elora 236 55mm 3 8 square drive universal joint