11/32,3/8,15/32,29/64,31/64,1/2,9/16,5/8,3/4 copper plated steel ... balls G10 G16 G100 G1000 1/16,3/32,1/8,5 ... ,5/16 11/32,3/8,15/32,29/64,31/64,1/2,9/16,5/8,3/4 copper coated steel ... balls mild steel ball 1. Material: AISI1045-10852. Grade:G100 to ... .700.04Max0.04Max 11/32,3/8,15/32,29/64,31/64,1/2,9/16,5/8,3/4, copper steel ...