Unparalleled Accuracy: Our latest precision scales provide unparalleled accuracy for your panel layout jobs. Press the handpiece to the desired angle, then press straight. The head is adjustable from 0-70 and fixed every 5 times (+22-1/2 and 67-1/2) to give you an accurate reference angle and length respectively. Ruler edge : The secret to the T-Rule is a series of precision-machined indexing holes and close-tolerance indexing pins that engage with them. The pin snaps into place, giving you confidence that it is positioned correctly. Both edges of the blade are laser etched with an inch scale of 1/32 of an inch. Increment. The total cumulative error of the scale over the length of the blade is 0.004 inch. The thin satin-brushed stainless steel blade is easy to read and minimizes parallax errors. Woodworking Layout Tool: This is a layout tool even if you're not using Angular. Almost any project can be done. The saw blades have the same special teeth. Wire notches are found in our new stainless steel precision woodworking grid. There are notches every 16 inches throughout the blade. With the pencil in the groove, slide the head along the edge of the stock to get a parallel line. Measurement range: 0-70 degree Type: ruler: silver + red Material: metal Size: 20 inch Package Content: 1 x Worker Rules The above package contents, the product is not included. Note: Shooting and different monitors may cause the color of the item in the picture to be slightly different from the actual item. The measurement tolerance is +/- 1-3cm. Note: The data is all measured manually, please allow 1-3cm error, due to the light and display difference, it there will be a certain color difference, the actual object received shall prevail.