Klingspor PS 21 FK Self-Fastening Discs – For Steel, Stainless Steel & Metals

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Klingspor PS 21 FK Discs – Paper Backing, Self-Fastening for Steel, Stainless Steel & Metals


The Klingspor PS 21 FK self-fastening discs are engineered for high-performance sanding on steel, stainless steel, and other metals, delivering fast stock removal and a consistent surface finish.


Built with a strong paper backing and premium aluminium oxide abrasive grain, these discs are ideal for demanding metalworking applications. The closed coat structure maximises contact with the workpiece for aggressive, efficient cutting, while the self-fastening (hook & loop) backing allows quick attachment and removal on compatible sanding machines—minimising downtime and improving productivity.


Key Features:

  • Self-fastening hook & loop backing – quick and secure disc changes

  • Durable paper backing – resists tearing during heavy-duty sanding

  • Premium aluminium oxide abrasive grain – sharp and long-lasting

  • Closed coat structure – ensures aggressive material removal and an even finish

  • Optimised for metal – works on steel, stainless steel, and non-ferrous metals


📏 Typical Specifications (may vary by disc):

  • Abrasive grain: Aluminium oxide

  • Backing: Heavy-duty paper with hook & loop attachment

  • Bonding: Resin over resin

  • Coating: Closed coat

  • Dimensions: Common diameters 125 mm and 150 mm

  • Grit range: Various grades from coarse to fine


📦 Common Applications:

  • Stock removal and surface preparation on steel and stainless steel

  • Deburring and edge smoothing in metal fabrication

  • Removing oxidation and surface contamination

  • Preparing metal surfaces for painting or coating

  • Working on non-ferrous metals such as aluminium and brass


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