Hollow Steel Balls - 30-810 [30-810] : Custom Iron Works ...
Custom Iron Works Hollow Steel Balls - 30-810 [30-810] - Hollow Steel Balls Sizes are outside Diameter. Thickness: 0.080" (Thickness of Material May Slightly Vary on Each Size ) Each ball is fabricated from 11 gauge steel however this may slightly vary on the larger sized hollow balls. ( aluminum and stainless steel at 24" and 48" O.D. - Part number 30-815 and 30-816, please …