STEEL RING MANDREL & METAL FINGER GAUGE SET RING SIZER WIDE BAND GRADUATED 1-15 ( LZ 2.1 FRE ) NOVELTOOLS METAL FINGER GAUGE SET RING SIZER WIDE BAND & STEEL MANDREL Set of metal finger measuring gauge and steel sizing mandrel. The A wide band finger gauge has 29 Piece metal rings for measuring finger size with a range of 1-15 includes half sizes. Along with a solid steel ring mandrel for measuring rings and used for sizing.