OIY1430 Features: * With reversible lock bolts, scriber, spirit level in both square head and protractor head, direct reading double 180 protractor scale, hardened steel, machine-divided blade * Steel scriber * Reversible lock bolt allows blade to be turned over or end-for-end, without removing the lock bolt or nut * Spirit level in square and protractor heads * Center head accurately finds center of round work * Multi-purpose uses include; 45 miter, depth gage, height gage, marking or scribing gage, a level, a plumb, and a precision rule * Beam Material: Cast Iron * Graduation(s): No. 4R - 8ths, 16ths, Quick Reading 32nds, 64ths * No. of Scales: 4 * Blade Material: Steel * Measuring System: Inch * Type: Combination Square * Price is for 1 Set * Testing and approvals: * Meets or exceeds accuracy and performance requirements of national and international standards and are traceable to the National Institute of Standards and Technology. Color/Finish: * Square head with black wrinkle finish