Features: Unmatched Design & Versatility: When it comes to finding a tool that will assist you in crafting perfect corners, angles, and other intricate details, look no further. The Small Square Tool is engineered for precision, offering parallel scribe holes in 1/16" increments, and a unique peephole for centering. The tool's base is specially designed to assist in marking 1/4" tenon cheeks and 3/8" tenon shoulders, making it the ultimate ally for carpenters and craftsmen alike. Quick and Accurate Measurements: Setting up your table saw and router table to the desired angle is now a matter of seconds. This square can quickly measure or mark angles from 0 to 90 degrees. Additionally, the 5-pin holes design allows for measurements in incremental degrees from 22-1/2 to 67-1/2, giving you the flexibility and accuracy needed for every project. Built to Last: Crafted from high-quality aluminum alloy, this square tool isn't just another accessory in your toolbox; it's an investment. The anodized red surface makes it rust-proof and corrosion-resistant, while multiple rounds of polishing ensure that it is smooth to the touch. Convenience in Your Pocket: Its compact size just 3.7" x 3.7" x 0.78" means it easily fits into your pocket, making it perfect for quick measurements on-the-go. Specifications: Color: Red Style: 4 Inch Material: High-Quality Aluminum Alloy Product Dimensions: 3.7"L x 3.7"W Package Included: 1 x 90 degrees Angle Ruler 1 x Banking Pin