Multi Functional: This small square has many convenient functions, such as accurately and quickly marking angles, easily marking parallel lines with a 1/16inch spacing between small holes on the square.Besides, the largest hole on the square guiding the 3/8 inch drill bit to accurately center on a 3/4 inch wooden board. Accurate & Clear Scale: The scale is on the small square, which is clear and easy to read, ensuring fast reading and not wearing out after prolonged use. Quickly Mark Angles: The angle marks on the slanted edge, in 5 increments from 0 degrees to 90 degrees, helps with quick angle marking. You can also easily mark 22.5°, 30°, 45°, 60°, 67.5° using the included pin Easy to Carry: It can be easily placed in work aprons, tool straps, and pockets, especially when it is inconvenient to carry with both hands High Quality: This small square is processed from high-quality aluminum alloy, which is rust proof, , and ., Weight: 0.22266688462 pounds, Manufacturer: ximie