... ,29/64,31/64,1/2,9/16,5/8,3/4 copper plated steel balls G10 G16 G100 G1000 1/16,3 ... /32,1/8,5/32,3/16,7/32,1/4,5/16 ... /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 G10003. Size: 1/8" 5/32" 3/16" 5/16" 5/32 ...