EZChange HTC grinding segment pad Metal Diamond Concrete Grinding Pad Scraper for concrete in grit 30# 60#,120# free shipping . Prodcut features. 1 superior sharpness 2 wear resistance 3 imporve efficency 4 save cost . Scope of Application. Concrete,Stone and Terrazzo,floor grinding and leveling . Segment size. 40*10*10 . Grit. 30/60/120