100-Pc Zirconia Sanding Discs 50mm/75mm P40–P120 Hard Metal
100-Pc Zirconia Sanding Discs 50mm/75mm P40–P120 Hard Metal
100-Piece Zirconia Abrasive Sanding Disc Set – 50mm & 75mm | P40–P120 Grits
Tackle the toughest metalworking jobs with confidence. This professional-grade set of 100 Zirconia Abrasive Sanding Discs delivers aggressive, long-lasting cutting performance on hard metals, alloys, and other demanding surfaces. Whether you're deburring, blending welds, or surface finishing, these discs are engineered to stay sharp longer than standard aluminium oxide alternatives.
What's in the Box
- 100 × Zirconia Abrasive Sanding Discs (your choice of 2″/50 mm or 3″/75 mm)
- 1 × Free 6 mm Shank Sanding Pad – fits most standard power drills and rotary tools right out of the box
Key Specifications
| Material | Zirconia Abrasive Cloth |
| Sizes Available | 2″ (50 mm) | 3″ (75 mm) |
| Grit Options | P40 / P60 / P80 / P120 |
| Quantity | 100 pieces per set |
| Shank Pad Included | 6 mm shank (1 piece, free) |
| Model | RSD577F02 |
| Country of Origin | Made in Mainland China |
Why Zirconia?
Zirconia alumina is a self-sharpening abrasive — as the top layer wears, fresh cutting edges are continuously exposed. This makes it significantly more durable than standard sandpaper discs, especially when working with hard metals, stainless steel, cast iron, and high-strength alloys. You get more surface area covered per disc and less downtime swapping discs.
Grit Guide
- P40 – Aggressive stock removal, rust stripping, heavy grinding
- P60 – Coarse shaping and weld blending
- P80 – General-purpose surface preparation
- P120 – Finer finishing and surface smoothing before coating
Applications
- Hard metal and alloy surface grinding
- Weld seam blending and removal
- Rust and scale removal
- Edge deburring and smoothing
- Surface prep before painting, coating, or polishing
- Workshop, fabrication, and automotive metalwork
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Frequently Asked Questions
Q: What sizes do these zirconia sanding discs come in?
A: The discs are available in two sizes: 2 inches (50 mm) and 3 inches (75 mm). You can select your preferred size when ordering, making them compatible with a wide range of drills and rotary tool backing pads.
Q: Which grit should I choose for metal grinding?
A: For heavy stock removal, rust stripping, or tackling hardened metal surfaces, start with P40 or P60. Move to P80 for general surface prep and P120 for a finer, smoother finish before applying a coating or polish.
Q: Do these discs work with a standard power drill?
A: Yes! Each set includes a free 6 mm shank sanding pad that connects the discs to most standard corded and cordless power drills as well as rotary tools. Simply attach the pad to your drill chuck and press on a disc to get started.
Q: Why are zirconia discs better than regular sandpaper discs for metal?
A: Zirconia abrasive cloth is a self-sharpening material — it fractures under pressure to continually expose fresh, sharp cutting edges. This makes it far more durable and efficient on hard metals, stainless steel, and alloys compared to standard aluminium oxide sandpaper, giving you more cuts per disc and better value over time.
Q: How many discs are included in the set?
A: Each set contains 100 sanding discs plus 1 free 6 mm shank backing pad, giving you a generous supply for extended projects or multiple work sessions.
Production & Packaging Notice
To maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.