Premium Aluminum Materials: Crafted from aluminum alloy, this ruler excellent strength and resistance to deformation, ensuring long term accuracy and stability in professional use Accurate Graduations: Features clear and accurate scale markings for quick measurement readings, eliminating errors and enhancing efficiency in drafting and design work Multi Functional Design: The right Angled hole marking ruler integrates multiple functions for various drawing and measuring needs, enabling accurate marking and positioning with ease Ideal for architects, engineers, and woodworkers Lightweight & Portable: Weighing only 214-281g, it provides comfortable handheld operations and easy portability, making it perfect for students, designers, and engineers on the go Wide Applications: Suitable for architecture, engineering, technical drawing, and woodworking projects, this versatile tool is a must have for every designers and craftsmen, Manufacturer: ljhnba