45 DEGREE MAGNETIC GUIDE
A useful guide for making exact 45 degree cuts. Great for dovetail mitres, mouldings, pictures frames etc . If you in the US the guides are available from http://www.highlandwoodworking.com/david-barron-tools.aspx  
For the rest of the world please contact Classic Hand Tools https://www.classichandtools.com/acatalog/David-Barron-Tools.html