Zirconium Corundum Flap Disc Set – 20-Pack Grinding & Polishing Wheels (40, 60, 80 & 120 Grit)

Grind Faster. Last Longer.

The Zirconium Corundum Flap Disc is engineered for heavy-duty grinding and polishing on iron, stainless steel, and other metals. With a Q115 hardness rating and a maximum line speed of 22,000 RPM, these louver wheels deliver aggressive stock removal with a smooth, consistent finish — outlasting standard aluminum oxide discs by a wide margin.

Why Metal Workers Choose Zirconium Corundum

• 💪 Zirconium corundum abrasive — harder and more durable than standard aluminum oxide
• ⚡ Up to 22,000 RPM — high-speed performance for fast, efficient material removal
• 🔧 Works on iron & stainless steel — versatile for fabrication, weld cleanup, and surface prep
• 🎨 4 grit options — 40 (aggressive), 60 (medium), 80 (fine), 120 (finishing)
• 📦 20-piece pack — stock up and keep grinding without interruption
• 🔐 Q115 hardness — consistent, reliable performance disc after disc

Product Specs

• Material: Zirconium corundum
• Hardness: Q115
• Max line speed: 22,000 RPM
• Compatible materials: Iron, stainless steel, and other metals
• Grit options: 40 / 60 / 80 / 120
• Quantity: 20 discs per pack

From weld seam removal to final surface finishing — grab the right grit and get it done.