• Reversible lock bolts, scriber, spirit level in both square head and protractor head
• Direct reading double 180 Deg protractor scale
• Hardened steel, machine divided blade
• Satin Chrome Finish Blade
• Forged and Hardened Steel Heads with Smooth Black Enamel Finish

The Starrett 12" Combination Set with Square, Center, and Reversible Protractor Head and Blade includes a reversible lock bolt, scriber, spirit level in both square head and protractor head, direct reading double 180 Deg protractor scale, hardened steel, photo-engraved blade. The square heads and center heads are forged, hardened steel with a smooth, black enamel finish. 12", 16R Grad, Satin Chrome Blade.