PEC Tools 7127-012 E/M 12" 4 Piece Combination Square Set, reads 32nds, 64ths, 1mm, 1/2mm. Heads: Square Head, Center Head, Protractor Head. Length: 12" English/Metric Graduations: 32nds, 64ths, 1mm, 1/2mm. Note: Photo may show a different blade - choose desired graduations from the description.