... ,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 11/32,3/8,15/32,29 ... 1. Material: AISI1045-10852. Grade:G100 to G10003. Size: 1/8" 5/32" 3/16" 5/16" 5/32" 7/32" 1/4" 3/8" -7/8" 1 ... /2" 1"4. Hardness: 58-62HRC5. Packing: Bag/Carton6. Brand :Ball ...