3M 51999 Flap disc Diameter 125 mm Grit size=40 10 pc(s)

Performance without compromises! Do difficult work with the 3M™ 769F fan disc, which is all but normal. With the 3M precision shaped grain it offers a great combination of performance and benefits. In addition, this disc allows twice the ablation rate and the same long service life as compared to conventional zirconium corundum grinding wheels. A particularly precise result can be achieved with a 120+ grain size. An excellent choice for the machining of structural and stainless steel.The precision-shaped ceramic grain contained in the fan disc allows an exceptionally high abrasion with less contact pressure. This grinding grain forms triangular tips that cut the metal and do not penetrate or "plow" like conventional abrasives. Serrated washers are three-dimensional grinding wheels, consisting of overlapping, fiber-reinforced louvers coated with abrasives, which fan out from a central hub. While the overlapping laminated layers wear off, leaves with fresh abrasive mineral are continuously exposed. This enables fast and uniform sanding and the padding of the lamellae produces a homogeneous surface quality. Under normal conditions, our fan blades produce a finish that is a step finer than the finish of a fiber disc of the same quality. Its overlapping design allows more grinding material to be brought onto the cut surface, so that they are clearly superior to typical grinding wheels. For this reason, our discs allow for a significant increase in the productivity of grinding processes. They do two tasks in a single step, grinding and finishing, and can therefore replace discs with bonded abrasives and fiber discs. They are a useful time and cost saving solution for a wide range of applications, especially when it comes to surface quality and cut resistance. Our fan blades are designed for angle grinders.

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