434 FORGED AND HARDENED STEEL AND CAST IRON HEADS Combination set with square, center and reversible protractor head and blade. The square heads and center heads are forged, hardened. Fea tures • Reversible lock bolts, scriber, spirit level in both square head and protractor head • Direct reading double 180º protractor scale • Hardened steel, photo-engraved blade • Forged and hardened steel square and center heads • Cast iron protractor head • Smooth black enamel finish 9 CAST IRON HEADS. USES NO. 11 SERIES HEADS This combination set with square includes a reversible lock bolt, 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. Fea tures • Reversible lock bolts, scriber, spirit level in both square head and protractor head • Direct reading double 180º protractor scale • Non-reversable protractor head • Hardened steel, photo-engraved blade • Cast iron heads with black wrinkle finish COMBINA TION Squares Cat. No. EDP Size Graduation Blade 434-12-4R 51542 12" 4R – 8ths, 16ths, Quick Reading 32nds, 64ths Regular C434-12-4R 51548 12" Satin Chrome Cat. No. EDP Size Graduation Blade 9-12-4R 50042 12" 4R – 8ths, 16ths, Quick Reading 32nds, 64ths Regular C9-12-4R 50046 12" Satin Chrome C435-12-4R 9-12-4R 98 R ules and S quares