Zoom icon Click to expand Tap to zoom Chevron down icon Chevron down icon Plain Square with Round Edges Modern Graduated Ring Mandrel by PepeTools Sale $58.40 | / SKU 43-079GR 1 2 3 4 5 6 7 8 9 10+ Quantity Chevron down icon Quantity Add to cart Spinner icon Notify me when back in stock Email address Email me when available This ring mandrel is used for square ring shanks. It is graduated from US sizes 1 to 16 in . sizes.