Combination Square Set, Number of Pieces 4, Blade Finish Satin, Blade Material Steel, Head Length 4 1/2 in, Head Width 3/4 in, Blade Length 12 in, Blade Thickness 0.06 in, Blade Width 1 in, Graduation Mark Style Etched, Graduation Marks - Front 1/64 in, Head Type Center/Reversible Protractor/Square, System of Measurement SAE, Head Material Steel, Includes Blade, Head Vial Included Yes, Accuracy Not Applicable, Blade Coating Chrome, Blade Color Silver, Graduation Color Black