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The hand block SFK 655 comes in a set which includes 18 hand blocks that come with three different grit sizes. It can be used almost anywhere – at home, for car and motorcycle care or in the workshop. Craftsmen and do-it-yourselfers rely on it for their cleaning and finishing applications. The product has been designed for hand sanding. It is suitable for work on:
One major benefit of this abrasive block certainly lies in its suitability for universal use. It always offers the abrasive that is right for the job - regardless of the material. The silicon carbide grains bonded in plastic produce a substantially finer surface structure compared to abrasives that rely on a different type of bonding. This is why this abrasive block is preferred by many for cleaning and finishing. Examples of in the home include the cleaning of the underside of irons or cleaning stainless steel sinks. It is also used for rust removal in small spots on vehicles. The hand block is most effective when used in combination such cleaning agents as water or soap / such additives as petroleum or pastes.
The abrasive grain used for the hand block is silicon carbide, which is bonded with plastic. The result is a structure that is more elastic compared to ceramic or synthetic resin bonds. This elasticity keeps roughness at a minimum and ensures that there are next to no changes to the geometry of the workpiece. Another factor of decisive impact on the scratch pattern - besides the abrasive grain - in the bonding. While exceedingly hard, the silicon carbide used is not particularly tough. Its crystalline structure makes the grit sharp-edged, yet brittle. Sensitive to breakage, the material causes micro-wear of the grit. When used for cleaning and finishing, the hand block will therefore remain usable until it is worn out completely. Since made synthetically, the grit is guaranteed to deliver uniform quality and defined characteristics.
