Abrasive Hook-and-Loop Sanding Disc KLINGSPOR 125 mm K120 Zirconia Alumina (Pack of 50, MPN 237782)

KLINGSPOR 125 mm hook-and-loop sanding discs with K120 zirconia alumina grit are designed for medium-fine abrasion and finishing on a range of hard materials. The discs fit standard 125 mm backing pads on orbital and random-orbit sanders and are supplied in a pack of 50 to support continuous workshop use. Their zirconia alumina abrasive provides consistent cutting performance and good resistance to glazing, making them suitable for surface preparation, removal of light imperfections and smoothing prior to painting or sealing.

Advantages

These sanding discs combine the wear resistance of zirconia alumina with a hook-and-loop (VELCRO-style) fastening for fast disc changes and reliable retention during operation. The K120 grit offers a balance between material removal rate and surface quality, reducing clogging on metal and hardwood applications. The backing-compatible 125 mm size ensures compatibility with common sanding machines, while the pack quantity supports frequent use without frequent reordering.

Suitable for

• Sanding and blending of ferrous metals and stainless steel
• Intermediate smoothing of hard woods and plywood
• Surface preparation before painting, varnishing or coating
• Deburring and light stock removal on automotive and metalworking tasks

Key specifications

• Disc diameter: 125 mm
• Abrasive grain: zirconia alumina
• Grit size: K120
• Attachment: hook-and-loop (VELCRO-style)
• Intended use: orbital and random-orbit sanding machines
• Pack quantity: 50 discs

How to use

Ensure the sander is compatible with 125 mm discs and that the backing pad surface is clean and undamaged. Attach the disc by aligning the hook-and-loop surfaces and pressing firmly to secure. Operate the sanding machine at speeds recommended by the sander manufacturer, using even passes and moderate pressure to avoid gouging. Replace discs when abrasive performance diminishes or if the disc becomes torn or contaminated.

Usage recommendations

For optimal results on metals, use with steady, overlapping strokes and allow the abrasive to do the work rather than applying excessive pressure. On hardwoods, test on a scrap piece to verify surface finish before proceeding to visible areas. Store discs in a dry environment to maintain adhesion of the hook-and-loop backing and to prevent premature degradation of the abrasive.