Resin Pivot Square Scribe Notch End 9 in Scribe Notch Start 1 in Includes Framing Guide Book Center-to-Edge Heel Width 4 1/2 in Scribe Notch Graduation Marks 1/16 in Scribe Notch Location Bottom Top Square Size 9 1/2 in Square Material Glass Nylon Graduation Mark Style Printed Graduation Marks - Base 1/16 in Graduation Marks - Blade 1/16 in Specialized Scales Common Rafter Scale Degree Scale System of Measurement SAE Square Type Pivot Coating Chrome Edge Style Square