PS 21 FK Paper Backing Disc

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The Klingspor abrasive disc PS 21 FK is fastened by a hook and loop connection, making it a cinch to fit it on a sander with hook and loop backing pads. It is furnished with a backing made of heavy F-weight paper. The abrasive grain is applied to this backing. Consisting of zirconia, this abrasive is made synthetically – just as all other grains used by Klingspor. The synthetic manufacturing process preserves the product’s high quality and exceptional characteristics. Zirconia is hard, exceedingly tough and possesses a uniform, crystalline structure. Better yet, this aggressive grain is also self-sharpening. This feature allows the abrasive disc to deliver outstanding service life.