9 Combina tion Sets with Square, Center and Non-reversible Protractor Head CAST IRON With reversible lock bolts, scriber, spirit level in both square head and protractor head, direct reading double 180º protractor scale, and hardened steel, photo- engraved blade. Cast iron heads with black wrinkle finish. Also available with satin chrome blade and protractor head. Supplied in protective case 9-12-4R Combina tion Sets Combina tion Square with Center and Non-Reversible Protractor Head 12-24" Combination Sets with Square, Center and Non-reversible Protractor Head and Blade Cast Iron Heads with Black Wrinkle Finish Size Graduation Blade Cat. No. EDP 9-12-4R 50042 12" 4R – 8ths, 16ths, Quick Reading 32nds, 64ths Regular C9-12-4R 50046 Satin Chrome 9-12-16R 50043 12" 16R – Quick Reading 32nds,64ths,Air Craft Quick Reading 50ths,100ths Regular 9-18-4R 50044 18" 4R – 8ths, 16ths, Quick Reading 32nds, 64ths Regular 9-24-4R 50045 24" 4R – 8ths, 16ths, Quick Reading 32nds, 64ths Regular 300-600mm Combination Sets with Square, Center and Non-reversible Protractor Head and Blade Cast Iron Heads with Black Wrinkle Finish Size Graduation Blade Cat. No. EDP 9M-300 56253 300mm mm and 1/2mm Both Sides Regular 9M-600 56254 600mm mm and 1/2mm Both Sides Regular 300-600mm and 11-3/4 – 23-1/2" Combination Sets with Square, Center and Non-Reversible Protractor Head and Blade Cast Iron Heads with Black Wrinkle Finish Size Graduation Blade Cat. No. EDP 9ME-300 50047 300mm and 11-3/4" 1/2mm and 32nds One Side; mm and 64ths Reverse Side Regular 9ME-600 50048 600mm and 23-1/2" 1/2mm and 32nds One Side; mm and 64ths Reverse Side Regular 271 starrett.com S quares