The diamond segment bar is usually used for coarse concrete grinding or medium concrete grinding. Normally, you can set up 1 or 2 segment bars on the blank steel body, with different layouts. For get a long lifespan, our C01 lavina diamond tool adopted 2 big parallel segment bars (40*10*12mm). The excellent diamond segment formulas ensure its stable performance. Newest design of Lavina diamond tool and it is compatible with old version grinders 2 parallel segment bars for coarse concrete grinding, with high performance Various types of bond to choose from Various diamond grit to choose from Besides, the shape of lavina diamond segment has been updated. Compared with the old one, the newest version of lavina diamond segment has a smooth corner on each top side. It is also compatible with the old version floor grinders. So, Sunny Superhard Tools strongly recommend you choosing the new version of lavina diamond grinding disc. Difference of old type and new type of Lavina Grinding Disc Optional Specifications Optional Diamond Grit 6#, 16#, 36#, 60#, 80#, 120#, 180#, 220# Optional Metal Bond extremely soft, very soft, soft, medium soft, hard, and very hard Optional Packaging 6 or 9 pieces per box Optional Painting Color High light or Matt, common colors are: orange, yellow, red, black, purple and blue Other services OEM/ODM service is available, such as logo engraving(free), painting color(free), and etc. SYF-B09