High-Quality Materials for MicrofinishingOur 3M™ Diamond Microfinishing Film Sheet 675L and its family of discs, belts, etc., was designed to improve productivity and reduce the cost of superfinishing hard materials such as thermal spray coatings, ceramics, carbides, chilled iron, granite and others. It features micron-graded diamond mineral.Get Best Results with WaterThe uniform caliper of this polyester film backing supports both uniform finishes and aggressive cut rates. It is tear-resistant and non-compressible. The sheet is also water-resistant and may be used for wet or dry applications. Water is desirable for diamond polishing, since it cools both the work and the abrasive. Adding a lubricant like water can help keep the abrasive cutting and remove swarf.Focus On the Task, Not the Tool, With HookitThe Hookit™ hook-and-loop feature makes sheet attachment, removal, and re-attachment clean and easy, and facilitates use and re-use of the sheet for the full extent of its abrasive life. Hookit sheets have J-shaped hooks of the type most commonly used in everyday hook-and-loop applications. These J hooks grip the brushed nylon loop backings of any mating 3M™ Hookit parts – a sanding block, a hand pad or a backup pad, for instance. And while attaching them is easy, they provide a remarkably secure attachment mechanism for even heavy duty sanding.3M™ Science. Applied to Advanced Metalworking Results.At 3M, our comprehensive portfolio of proprietary technologies and solutions has been carefully engineered to do more than improve the cut and the finish on metal surfaces. With our products' tough, durable abrasive properties and advanced synthetic formulation, they help you to improve your productivity, operational efficiency and workforce welfare.In short, our abrasive solutions make it possible for you to do the job quicker, more cost-effectively and safely, enabling you to achieve advanced metalworking results.