General description The Square Ruler is a versatile tool designed for wood marking and scribing, crafted from solid 6061 aluminum alloy for durability. It features a comfortable texture and a rotary knob made of high-quality brass, ensuring a reliable and precise experience for woodworkers. Technical specifications Material: 6061 aluminum alloy Knob Material: 100% pure brass Scale Length: 180 mm Measurement Precision: 1 mm Usage Scribing: Use the small hole as a starting point, adjust to the desired length, and draw lines as needed. Measuring: Move the limit block to the top of the ruler, tighten the knob, and use it as a T-ruler for daily measurements. Bilateral scale: Utilize the scales on both sides of the ruler for added convenience. Other information All scales are laser-engraved for precision, clarity, and ease of reading. This tool makes a great gift for woodworking enthusiasts.