- Tough white ABS plastic with great UV resistance and easy to read metric increments
- Easy to use saw guide for 45 and 90 degree angles
- Large base which is great for gripping onto materials such as framing with an arris
- Easy to read conversion tables for common applications such as rise and run for use as a rafter square
- Easy to scribe notches
The Alf Tools 1 Way Square is a high-quality professional 170mm Speed Square. Great for tradesman to check and mark angles similar to a rafter square or for common applications such as rise and run calculations