1 2 3 A flexible diamond product is made up of three basic raw materials; grit (1), bond (2) and backing (3). 1. GRITS Diamond is the hardest material available which provides a predictable, consistent and repeatable finish for hard and brittle materials. Diamond consists of pure carbon in a crystalline structure. For grinding tools, the diamond used are generally synthetic, produced at very high temperatures under high pressure. The grit size data for diamond is based upon the average grit diameter in m. All grits are colour coded which is a standard for flexible diamond tools within the abrasive industry. Grit availability differs per bond (metal or resin) and pattern. Grit size THE FOLLOWING GRIT SIZES ARE AVAILABLE Mesh 50 60 120 200 320 400 500 800 1500 3000 Fepa P60 P80 P120 P220 P320 P400 P500 P600 P2500 Micron 301 m 250 m 125 m 74 m 54m 40m 30m 20m 9m 3m 50 60 120 200 320 400 500 800 1500 3000 Stock removal Grinding Polishing Finishing FROM COARSE TO VERY FINE GRITS A coarse grit increases stock removal and surface roughness of the workpiece. Choosing the right grit size depends on various factors; » Application » Material » Tool speeds and feeds » Wet (water, lubricant) or dry grinding » Required finish (Roughness level Ra) General rule: Flexible diamond tools perform best when used wet. PRODUCT SPECIFICATION & CONSTRUCTION Page 20
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