The dotted diamond segment bar is a new design for quick starting of the concrete grinding. Generally speaking, the segment number of a floor grinding plate matches with different scales of floor grinders. 1 segment is usually used for small grinders, and 2 or 3 segments are need a bigger power to drive. The dotted segments on the top have 2 advantages: On the one hand, It reduces the contact area with the concrete floor and it's easy to start a grinding job with this diamond segemnts. On the other hand, this type of segment don't need to be sharpened before use, compared with other un-dotted segments. Sunny Superhard Tools keeps researching & developing the best redi lock floor grinding plates for our customers. Quick Details Item Number SYF-D19 Connection Type Redi-lock Type (Fit for Husqvarna grinding machine) Bond Type Metal Bond Segment Details Dotted segment bar, 2 pieces Diamond Grit 6# 16# 36# 60# 80# 120# 180# 220# Application For grinding concrete floors Applied Machine Husqvarna floor grinder or other grinder with adapters Packing Details 6pcs/box or 9pcs/box Lead Time 7-15 days after order is confirmed. MOQ 9pcs 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. The difference of Scanmaskin and Husqvarna concrete floor grinding disc in Redi Lock. SYF-D08SSYF-D18SYF-D19