Manufacturer Part Number: 13-277-9|Number of Pieces|4; 4Blade Length (mm)|Blade Length (Inch)|18Blade Length (Decimal Inch)|Graduation Style|4RGraduation (mm)|0.02in; 0.03in; 0.06in; 0.13inGraduation (Inch)|0.02in; 0.03in; 0.06in; 0.13inHead Type|Center; Protractor; SquareBlade Material|Hardened SteelHead Material|Cast IronBlade Width (Inch)|Blade Width (mm)|Base Width (Inch)|Includes|PSC Code|UNSPSC Code|Trade Name|Series|