Locknut Socket - 3/4 Drive - 4-3/8 - 6 pt For use with a ratchet or breaker bar. .Fits hexagonal 6 point..Machine welded 3/4” drive plate. High tensile strength steel for added durability in high volume applications. . etching for permanent identification and easy reading. Chamfered edge design for easy on/off transition. .Powder coat finish provides added rust protection. Precision engineered for exact fit and smooth operation. Each socket individually boxed and labeled with bar code. .4 3/8 LOCKNUT SOCKET 6 POINT, Fits hexagonal 6 point, Machine welded 3/4” drive plate. 18516 Yes - Titanium dioxide (airborne, unbound particles of respirable size)