Lavina diamond grinding disc is a QuickChange trapezoid pad. With this design, this disc can be easily slid in and out of the holder plate without any bolting. It is mainly used on Lavina floor grinders and also can be suited with other grinders via a QuickChange adapter plate. On the official site of Lavina, they offer adapter plates for HTC, Sase, Husqvarna, Edco, Diamastic, STI/PrepMaster, Klindex, Terrco, and other floor grinders, as well as a universal bolt-on tool adapters. This C03 QuickChange Lavina diamonds is designed with one round segment on the corner, for grinding concrete floor and terrazzo floor efficiently. Sunny Superhard Tools prepares several specifically designed metal bonds for the different types of concrete hardness. We also provide OEM/ODM services, such as engraving your logo on the Lavina diamond grinding disc, customizing the painting color, etc. 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-C03