Quickly Mark Angles: The angle marks on the slanted edge, in 5-degree increments from 0 degrees to 90 degrees, help with quick angle marking. You can also easily mark 22.5, 30, 45, 60, and 67.5 using the included pin Easy to Carry: It can be easily placed in work belts, tool straps, and pockets, especially when it is inconvenient to carry tools with both hands Multi Functional: This small square has many convenient functions, such as accurately and quickly marking angles, easily marking parallel lines with a 1/16-inch spacing between small holes on the square. Besides, the largest hole on the square guides a 3/8-inch drill bit to accurately center on a 3/4-inch wooden board Accurate & Clear Scale: The scale is etched on the small square, which is clear and easy to read, ensuring fast reading and long-lasting durability High Quality: This small square is made from high-quality aluminum alloy, which is rustproof, durable, and corrosion-resistant Scribe Holes: Designed with scribe holes for added functionality Material: Aluminum alloy Color: Red Package Contents: 1 x Carpenter Square Note: Only the above package content is included; other products are not included Note: Light reflection and different displays may cause the color of the item in the picture to appear slightly different from the real thing. Measurement may vary by +/- 1-3 cm