b'COMBINATION Squares434 s R quaRes and ulesFORGED AND HARDENED STEEL AND CAST IRON HEADSCombination set with square, center and reversible protractor head and blade. The square heads and center heads are forged, hardened.F EaturEs Reversible lock bolts, scriber, spirit level in both square head and protractor head Direct reading double 180 protractor scale Hardened steel, photo-engraved blade Forged and hardened steel square and center heads Cast iron protractor head Smooth black enamel finishCat. No. EDP Size Graduation Blade434-12-4R51542 12" 4R8ths, 16ths, Quick Reading 32nds, 64ths RegularC434-12-4R51548 12" Satin ChromeC435-12-4R9CAST IRON HEADS. USES NO. 11 SERIES HEADSThis combination set with square includes a reversible lock bolt, scriber, spirit level in both square head and protractor head, direct reading double 180 protractor scale, and hardened steel, photo-engraved blade. Cast iron heads with black wrinkle finish. Also available with satin chrome blade and protractor head.F EaturEs Reversible lock bolts, scriber, spirit level in both square head and protractor head Direct reading double 180 protractor scale Non-reversable protractor head Hardened steel, photo-engraved blade Cast iron heads with black wrinkle finishCat. No. EDP Size Graduation Blade9-12-4R50042 12" 4R8ths, 16ths, Quick Reading 32nds, 64ths RegularC9-12-4R 50046 12" Satin Chrome9-12-4R70'