Aluminum Alloy: This woodworking square ruler is crafted from aluminum alloy, with its exterior undergoing anodizing and multiple polishing, making it rustproof and wear resisting, long lasting use Multiple Functions: Features multi angle measurement, equipped with half round pointer for installing angle pins, 0-180° adjustable angle range to meet various engineering needs and provide flexibility and versatility for your projects Clear and Accurate: This square ruler adopts advanced engraving process to that the scales are clear, resisting to fading, facilitating measurement and marking. Each scale undergoes fine machining and calibration to precise measurement results Stable Design: The tight sliding fit securely holds the locating pins in place, providing stability and accuracy for your woodworking projects. It is also easy to disassemble and reposition, effortless angle drawing Easy to Assemble and Use: Combining a half round angle ruler, a right angle square, and a pointer, along with screws, a wrench, and washer, it facilitates easy assembly and use, suitable for various woodworking measurement and marking projects, Manufacturer: MRKU