I wanted a "wall mount" for my Woodraphic precision square (a much more affordable alternative to Woodpecker squares). This was designed for the 12in version, but, should work just fine for 300mm metric version too. I have not tried it on the 8 inch or 4in, doubt it would work. If someone needs me to modify for the smaller square, please let me know.

Here is a link to the square if you want to pick one up: https://www.amazon.com/Woodraphic-Precision-Guaranteed-Measuring-Marking/dp/B07DNM93XC?crid=39TKZ1FTQKHJ3&keywords=wood%2Briver%2Bsquare&qid=1656122562&sprefix=wood%2Briver%2Bsquare,aps,99&sr=8-1-spons&spLa=ZW5jcnlwdGVkUXVhbGlmaWVyPUE0UTQ3SVhaNTRNNzQmZW5jcnlwdGVkSWQ9QTA1NzcyOTMzRUoyOE05SDhFRkMyJmVuY3J5cHRlZEFkSWQ9QTA1MTgxMDcyTEM0WFZVODZZMkpNJndpZGdldE5hbWU9c3BfYXRmJmFjdGlvbj1jbGlja1JlZGlyZWN0JmRvTm90TG9nQ2xpY2s9dHJ1ZQ&th=1&linkCode=sl1&tag=mbueche-20&linkId=7d31ce5dbe7c5e499a35fed18f08e522&language=en_US&ref_=as_li_ss_tl

This model DOES require supports and they are a little tricky to remove, but take your time and use some small precision tools.

Notes: This model DOES require supports and they are a little tricky to remove, but take your time and use some small precision tools.