The best way to go is construct a jig for your grinder from timber and set it at the exact angle you need. You can buy angle grinder stands but I’m not sure they do stands for mitreing, although you could buy one and adapt it, such as this one: http://www.amazon.co.uk/Wolfcraft-50190 ... B000P3DX6K
It is possible to buy concrete/block mitre saws but they are hugely expensive.
Hi was having problems cutting bricks for my bay window 45° angles. I went to facing-bricks.co.uk and they sorted it. collected bricks from my house, cut and bonded them and delivered them back. a lot easier than doing it myself.
DIY how to tutorial projects and guides - Did you know we have a DIY Projects section? Well, if no, then we certainly do! Within this area of our site have literally hundreds of how-to guides and tutorials that cover a huge range of home improvement tasks. Each page also comes with pictures and a video to make completing those jobs even easier!