17/64" 6.7469mm AISI S-2 Tool (Rockbit) Steel Balls LUOYANG ZHISHENG STEEL BALL LIMITED LIABLITY COMPANY Base Info Description Pre：1/4" 6.35mm AISI S-2 Tool (Rockbit) Steel Balls Next：9/32" 7.1438mm AISI S-2 Tool (Rockbit) Steel Balls
