14D Double Square complete with graduated, bevel and narrow blades. 14, 14M Double Steel Squares with Hardened and Ground Head and Blades 2-1/2"/50MM Designed for tool and diemakers, these fine precision double steel squares have adjustable blades, ideal for tight fits. A knurled clamping nut accurately locks the blades in any position. Beveled blade is 45º on one end and 30º on the other. 2-1/4" (58mm) Narrow blade has 32nds and 64ths graduations. It is 5/32" (4mm) wide over a length of approximately 1-5/8" (41mm) and cut away at one end to a width of 3/32" (2.4mm). Double Squares 14 Inch Reading Double Steel Squares – 32nds, 64ths Cat. No. EDP Size Graduation Description 14A 50117 2-1/2" 32nds, 64ths With Graduated Blade Only 14D 50118 Complete with Graduated Narrow Blade and Bevel Blade 14M Millimeter Reading Double Steel Squares– mm Both Edges One Side; mm and 1/2mm Reverse Side Cat. No. EDP Size Graduation Description 14MA 56260 50mm mm, 1/2mm With Graduated Blade Only 14MD 56261 Complete with Graduated Narrow Blade and Bevel Blade 280 S quares