* Use to make 45- and 90-degree markings, to measure and to check depth* Precision machined head and True Blue vials ensure accuracy and squareness to .001 inch* 12-inch etched stainless steel blade* Self-aligning draw bolt* Hardened scriber* Matte finish will never rust or corrode
Stainless steel blade prevents rust and corrosion. Polycast handle includes acrylic vial for level, plumb and 90-and 45-degree work. 120M has metric graduations on both sides of blade.