Review on SE Diamond Hole Saw Set (10 PC.): Premium Quality for Efficient Cutting - DH09HS by Ron Patel

Most homeowners only need them for a project or two and then sit in their toolbox for years before using them again. So why spend literally ten times more money on high-end professional beats? They are perfect for the occasional bathroom remodel when you need to cut holes in a mirror or glazed tile. But there's a downside - there's no tap bit here, so those bits will wander around if you're not using a template. You need to cut a hole out of masonite or thin plywood that is the size of the diamond bit and then use it to keep it from wandering around. Sponge insert that deposits water while drilling. Therefore, you should spray water when using it - this keeps dust away and cools the drill.