Combination Square Set Number of Pieces 4 Head Type Square Center Protractor Graduation Type Inches mm Graduations 1/32 in 0.5mm 1/64 in 1mm Head Material Cast iron Powder Coated Finish Blade Material Steel Unfinished Blade Finish Features Locate Center Level Check Angles Set 90 Degrees 45 Degrees Rule Marking Reads Inch Millimeter Includes Center Head Protractor Head Square Head Fitted Storage Case