300mm Metric Woodworking Ruler - Woodpeckers 300mm woodworking ruler is straight, heavier, sits flatter and is easier to handle than any other woodworking ruler. In addition, there is an engraving tolerance of ±.4 cm total error and we are talking about the best rules you can use in your workshop. Left to right and center. This woodworking ruler features two sets of laser engraved scales. One side has a standard L2R scale and the other side has a centering scale. Beveled Edges - The woodworking ruler features a 30° beveled edge specially designed to bring your scale into your work and prevent parallax errors. Add-ons The woodworking rules have 3 different optional add-ons that you can use. A hook stopper to give you a physical reference at the end of the tool. A check stop for repeated markings. A protractor head to turn your ruler into a tsquare and protractor. MADE IN THE USA - Like all Woodpeckers tools, precision woodworking rules are precisely engineered and carefully inspected at our Strongsville, Ohio facility., Weight: 0.5 pounds, Manufacturer: Woodpeckers