Up to 4x faster than a standard disc.Professional metalworkers take pride in the beauty of a finished surface, but surface finishing can be a time consuming job. By minimising the process steps required to achieve a perfect finish, the Expert N477 Disc ensures efficiency without compromising on quality.Part of the Bosch Surface Structure range of advanced abrasives, the Expert N477 Surface Material Conditioning Disc combines the toughness of ceramic coated aluminium oxide grits with a 3D non-woven structure to give a fast cutting SCM which does not smear. These discs are ideal for refining of #36 fibre disc scratches on mild steel.Offering time savings to the professional by saving process steps without compromising on quality, the Expert N477 Disc is the expert’s choice when it comes to surface preparation.Just stick it on with hook and loop. Technical data: Disc diameter mm: 115 Bore diameter mm: 22,00 Version: Medium