This 16-inch digital protractor combines an angle finder, level, and measuring ruler into one durable tool, built with a metal 400 mm (approximately 16") body for lasting accuracy on the job site. It displays angles clearly on a back-lit LCD, making it easy to read in bright or dim environments and transfer measurements for remodeling, cabinetry, tiling, and more. Key features - 0 to 225-degree angle range with 0.1-degree increments for precise layout and cut angles - Digital accuracy of ±0.5° (consistent across all ranges) and a readable, back-lit display - 16" / 400 mm metal ruler body for sturdy, repeatable measurements - Hold function to freeze the angle reading for quick transfers to plans or material layouts - Thumb-screw lock locks the pivot to prevent unwanted movement during marking or transferring - Two spirit levels set at 90 degrees provide a reliable baseline reference when you need a traditional level - Auto shut-off after five minutes to conserve battery life during extended projects - Battery requirement: 9V (battery not included due to air shipment restrictions) Why it helps your projects - Remodeling and cabinet installation: quickly capture accurate wall and cabinet angles to ensure tight fits and seamless transitions. - Roofing, door and window fitments: verify angles in rafters, frames, and sills to avoid miscuts and return visits. - Flooring and tiling: transfer exact angles for profiled edges, stair stringers, or angled floor patterns. - Concrete forms and carpentry: align forms precisely and lock in angles before cutting or pouring. - Railings, banisters, and trim: confirm consistent 90-degree references while matching angled surfaces across rooms. How to use - Place the tool along the edge or surface you’re measuring. - Read the angle on the illuminated LCD; use the hold function to freeze the value for marking. - Lock the pivot with the thumb-screw if you need to maintain a fixed angle during transfer. - Check alignment with the dual 90-degree spirit levels for an additional reference when a true level is essential. Materials and durability - Constructed with a robust metal body designed to resist typical workshop wear, delivering repeatable results across a range of tasks from precise layout work to rough construction scenarios. Important note - This device requires a 9V battery, which is not included due to air shipment restrictions. You can purchase a 9V battery locally to power the unit.