I installed this cool glass mosaic wall tile
but a big challenge was cutting around the electrical box so I used a Mosaic 2 glass blade
a wet sponge and my grinder to make the initial cut and then shaped the tile using a Calidad
chamfer cone and as you can see here I got a really nice half-moon shape that when I set
the tile on Ardex X77 was nice and tight to the box and covered by the wall plate as well
as the light so I hope these tips help you out