550mm
Video-How to use a crosscut saw: https://www.youtube.com/watch?v=UmQdaWy3Pw0
Article-How to use a crosscut saw: https://home.howstuffworks.com/crosscut-saw.htm
31 Types of saws: https://www.garagetooladvisor.com/hand-tools/different-types-of-saws-and-their-uses/