Unparalleled precision: latest precision scale can unparalleled precision for your panel layout work. Just press the head to the , and then press the straight . The head can be adjusted from 0 to 70 and fixed 5 (+22-1 / 2 and 67-1 / 2), in order to you with an reference and length respectively. Woodworking edge rule: of T- ruler is a series of precision-machined holes and spring-loaded tolerance indexing pins that mesh with . The pin into place, giving you that it is positioned accurately. Both edges of the blade are laser- with an inch scale of 1/32 inch. Increment. The cumulative error of the scale over the blade length is .004inch. The thin satin-finished stainless steel blade is easy to read and minimizes errors. The perfect layout tool for woodworking: even if you 't use angles, this is also a layout tool. all projects can be completed. The saw blade has the same teeth. Design notches were found in new stainless steel precision woodworking grid. There is a sixteen inches on the entire blade. Just place the pencil in the and the head along the edge of the to a perfect parallel . Measuring range: 0-70 degrees Type: ruler Colour: Silver+Red Material: metal Size: 20Inch Package Contents: 1 x Woodworkers Edge Rule Only the above package content, other are not included. Note: Light and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.