3/16" 4.7625mm AISI S-2 Tool (Rockbit) Steel Balls LUOYANG ZHISHENG STEEL BALL LIMITED LIABLITY COMPANY Base Info Description Pre：5/32" 3.9688mm AISI S-2 Tool (Rockbit) Steel Balls Next：7/32" 5.5562mm AISI S-2 Tool (Rockbit) Steel Balls
