... G1000 AISI52100 chrome steel 1/16,3/32,1/8,5/32,3/16,7/32,1/4,5 ... /16 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" 7 ... 1/4" 3/8" -7/8" 1/2" 1"4. Hardness: 58-62HRC5. Packing: Bag/Carton6. Brand :Ball king7.MOQ:1 ... 0.700.04Max0.04Max 1/16,3/32,1/8,5/32,3/16,7/32,1/4,5 ...