Features • Durable Aluminum Alloy Construction: Crafted from high-quality aluminum alloy, this tool ensures long-lasting durability and resistance to wear, making it ideal for any woodworking project • Versatile Measuring Options: Features both movable angle backing and fixed angle backing for easy and precise measurements, perfect for various woodworking applications • Two Effective Scales for Flexibility: Available in T-300 with a 280mm scale and T-400 with a 380mm scale, catering to different measurement needs for enhanced project accuracy • Multifunctional Woodworking Tool: Serves as a reliable scribing tool, making it an essential addition to any carpenter's toolkit for efficient marking and measuring • Compact and Lightweight Design: Easy to handle and store, this T Type Square Ruler is perfect for both professional woodworkers and DIY enthusiasts, ensuring convenience on every job Features: 1、Suitable for woodworking scribing, etc. 2、Made of aluminum alloy material, and resistant 3、The ruler has movable angle backing and fixed angle backing, easy to use 4、T-300 effective scale is 280mm, T-400 effective scale is 380mm, two specifications can meet different needs 5、Multifunctional line scribing tool, a good helper for carpenter Specification: Item Type: Hole Ruler Material: Aluminum alloy Optional Style: T-300, T-400 T-400 Length: Approx. 400mm / 15.7in T-300 Length: Approx. 300mm / 11.8in Package List: 1 x Hole Ruler Note: New‑style and old‑style are shipped randomly Package List 1 x Hole Ruler