Check the listing for details. 3PK Trapezoidal Diamond Grinding Disc For Floor Grinders Hard Concrete Surface. Condition: New. Listed at 59.00 USD. Bolt-on Trapezoidal Diamond Grinding Polishing Discs Grinder Pads for Grinding Concrete Floor, Soft Bond, Hard Concrete Surface.Grit 120, Two Segments The premium quality Diamond Grinding Discs offers the best lifetime available on market Trapezoidal diamond grinding tooling discs/ pads designed for bolt-on floor grinding machinesSoft Bond: for hard concreteTwo grinding segments size: 40 x 12 x 12 mmPackaging:Set of 3 PieceArbor Size:Bolt onGrit Size: #120For wet or dry useCompatible Equipments:Fits bolt-on floor grinding machines, including:Diamatic - BGS-435 / 555 / 735 / 780Sase - PDG 5000 / 5000P / 6000 / 8000 / 8000P / 9500 / R8CPS - G170 / 210 / 250 / 290 / 320DInnovatech / Bartell - Predator 1800 / 2400 / 32D / 32NDXKlindex - Expander Diamond Bond: Soft Bond segments were designed to expose fresh diamond cutting edges more frequently than other bond types. This bond was designed for hard concretes such as those containing granite, quartz, and river stone. Medium Bond is a good all-purpose bond that balances cutting speed and tool life. This bond is suggested in most cases, it is good for medium concretes such as those containing pit gravel or crushed gravel. Hard Bond segments should be used for soft concretes such as those containing limestone, sandstone, or dolomite. Types of Grinding Discs Grit Ranges: #16 - #24 Grit: Very Coarse #30 - #40 Grit: Coarse #60 - #80 Grit: Medium. #100 - #120 Grit: Fine. # 150 grit and higher great for honing stones and jointing stones and other polishing abrasives Free Shipping & Returns: SAME business day shipping FREE 30-Day returns Contact us: Should you have any questions, please kindly contact us through eBay messaging service Click on the: "ask a seller a question" link on the listing page. We answer questions instantly. Thank you for shopping with DPT Diamond Tools! Powered by eBay Turbo Lister The free listing tool. List your items fast and easy and manage your active items.