Diamond drill bits are useful portable drills. They can drill clean holes in bricks, glass and concrete, and are better than other drills bits. The diameter of the hole you drill can be as small as 20 mm, as large as 130 mm, and as deep as 300 mm. They come in many varieties and types, with better performance and capabilities than their steel counterparts. It is important to know when and how to use the diamond drill bits.
