9PCS Trapezoid Diamond Grinding Shoes Disc with Triple Stars Segments for Concrete and Terrazzo Floor ASL Wolfpack FreeShipping Size:super soft bond Segment Types: Two M Shape

Segment Types: Two M Shape Segments

Material: PCD+Metal Blank

6'' Diamond Driver Plate Quick Change Adapter Disk Carrier Holder for HTC Floor Grinder to Use 6 Trapezoid Grinding Blocks

Material: Diamond Segments + Blastrac Metal Blank

(Very Soft Bond

9PCS Trapezoid Diamond Grinding Shoes Disc with Triple Stars Segments for Concrete and Terrazzo Floor ASL Wolfpack FreeShipping Size:super soft bond Segment Types: Two M Shape9PCS Trapezoid Diamond Grinding Shoes Disc with Triple Stars Segments for Concrete and Terrazzo Floor ASL Wolfpack FreeShipping if you are not sure which bond you should choose, please refer to below: Matching rules of concrete density and bond. 1. Extra soft bond for Extra hard concrete floors 2. Super soft bond for Super hard concrete floors 3. Soft bond for Hard floors 4. Medium bond for Medium hard concrete floors 5. Hard bond for soft concrete