4Pc Square Protractor Measuring Kit Combination Kit / BLADE LENGTH: 12.0 INCHES NOMINAL REVERSIBILITY: REVERSIBLE SQUARE/MITER HEAD SCRIBER: INCLUDED CENTER HEAD: INCLUDED PROTRACTOR HEAD: INCLUDED LEVEL: INCLUDED PART NAME ASSIGNED BY CONTROLLING AGENCY: COMBINATION SQUARE SPECIAL FEATURES: GRADUATIONS: 4R EVERY 8TH,16TH,32ND,64TH INCH;ETCHED, HIGH-CARBON BLADE WITH SATIN CHROME FINISH;SQUARE CAN DETERMINE 90 AND 45 DEG ANGLES AND MEASURE DISTANCES UP TO 1 FT OR 305 MM