- Multifunctional 300 mm combination angle ruler. It measures levels quickly and accurately and can determine 90 degree and 45 degree mitre angles. It can be used as a protractor, depth gauge, scriber and spirit level to meet different requirements. To ensure a true 90 degree angle, keep the portion on the 45 degree side. - High-quality material. The combination angle is made of stainless steel, offering corrosion resistance, rust-proof durability, and strong overall robustness. It is highly drop- and abrasion-resistant, and the shatter-proof electrophoretic coating ensures reliable performance in demanding environments. - High precision. The angle bevel features double-sided scales in metric and imperial sizes, precisely laser engraved for maximum accuracy and readability. The laser scale allows precise positioning, and the corner angle helps the ruler sit flush on wood. With engraving on both sides, you can measure in any direction and at any position. - Efficient design. The marking gauge has an ergonomic design to reduce elbow and wrist strain during measuring and marking. The handle sits comfortably in the hand and is easy to use. The tool includes a scriber for precise marking, and the slider can be fixed firmly with screws. Before first use, remove the scriber with pliers. - Practical use scenarios: - Framing and cabinet installation: verify level and plumb, check 90° and 45° mitres, and mark cut lines directly on stock. - Woodworking joints and trim work: lay out accurate mitre joints and depth references, then mark precisely with the built-in scriber. - Tile, metal, or DIY projects: confirm level surfaces, measure depths, and mark straight or angled reference lines for accurate cuts.