This Husqvarna redi lock diamond grinding segment is designed with 1 round segment, for concrete surface preparation. The holding plate of Husqvarna grinding disc is limited, so at most, we can put 2 segments on it. Sunny Superhard Tools use high quality of diamonds on our concrete grinding discs, to ensure high and stable performance. Redi lock is an immediate quick-change system for installing and changing diamond tools. This system ensures maximum protection and life of your diamond tools. On the market, there are mainly 2 brands of floor grinders which use redi lock system - Husqvarna floor grinders and Scanmaskin floor grinders. Their redi lock is a little different: [caption id="" align="alignnone" width="800"] Redi lock system of Scanmaskin and Husqvarna concrete grinding disc[/caption] 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-D08SSYF-D01