Measuring Tool: 2-in-1 bevel measuring cutting tool, you can easily transfer the correct angle to the saw without using multiple tools. Not only does it measure bevels, it also completes cuts. Precise Measurements: The Miter Measuring Knife has 2 moving arms to measure angles from 85 to 180 and can be used directly to measure all angles in this range. PRECISION CUTTING: Miter saw protractor tool, integrated guide pins for the saw, base plate rests on the guide provided. Use a backsaw for precise and error-free miter cuts. EASY TO USE: The measuring and sawing miter cutting tool is easy to use. Find the angle you need to measure, lock in, and cut. Utilities: Measuring template tool for corner cuts in baseboards or recesses that require special measuring tools. Suitable for woodworking work, plumbing installation, , also a great tool for tinkerers, , architects. size:31.7 x 8.1 x 7.2CM Material:ABS plastic+stainless steel colour:black Package Contents: 1 x Bevel measuring cutting tool Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.