Stainless Steel 4 PC Combination Square Head 12" 4R Center Protractor Blade 4 PC Combination Square Set ****** Accuracy: 15' **Case color may vary: BLACK or RED** Graduated at 180 degree in both direction ***** Graduation: 4R-8ths, 16ths, 32nds, 64ths Micro fine adjustment ****** Hardened stainless steel **** Double indexed protractor Includes: Square head, center head, protractor and blade Quantity: 1 ; Case dimension: 6''L x 16-7/8''W x 1-3/8''H