Feature:1. Accurate Measurement: The T shaped design of this drywall T square tool allows for easy alignment and secure clamping, ensuring accurate angle measurement. The built in level gauge provides additional accuracy for your woodworking needs.2. Multifunctional: The positioning block of this woodworking ruler scribing tool features two different hole diameters, allowing you to punch holes of 4.5mm and 3mm in size. Ideal for creating holes for screws, nails, and other fixings.3. Durable And Sturdy: Made from excellent aluminum alloy materal, this T ruler measuring scale tool is long lasting. It is resistant to erosion and provides excellent stability and durability for long term use.4. Convenient And Portable: The compact size and lightweight design of this scriber drawing T ruler make it easy to carry and use on the go. It fits comfortably in your toolkit, making it a must have tool for any woodworking enthusiast.5. Laser Engraving Scale: This scale of this T shaped woodworking scriber measuring tool is laser engraved, deeply etched, wear resistant, clear and easy to read, easy to read, not easy to wear and blur.Specification:Item Type: T Square RulerMaterial: Aluminum AlloyT Square RulerHole Diameter of Positioning Block: Approx. 4.5mm/0.18in, 3mm/0.12in.Package List:1 x T Square Ruler