Merryland Craft-Line FC1108414-20 5" Flap Disc 80 Grit 🛠

This 5 inch flap disc from Merryland is built for metalworking tasks that require steady material removal and a smooth finish. It combines a 80-grit abrasive with a conical T29 design to follow curves and edges, making it useful for deburring, surface prep, and intermediate smoothing before finer sanding. 🔧

Key Points

The disc uses European-grade abrasive paper and blue zirconium corundum grains that are intended to extend tool life and keep cutting rates consistent. It features a reinforced fiberglass backing that absorbs vibrations and reduces marking on workpieces during grinding. The T29 angled flap layout improves contact on curved surfaces and edges, so you can work both flat panels and pipe seams with fewer passes. ⚙️

A practical detail is the compatibility with angle grinders and bench grinders that accept a 22.23 mm arbor and a 125 mm disc. The pack comes in quantities suitable for workshops and recurring projects, allowing for quick replacements when discs wear down. Consider that aggressive 80-grit flaps may remove material faster than finer grits, so test on scrap when exact tolerances are needed.

Technical Specifications

• Name: Merryland Craft-Line FC1108414-20
• Diameter: 125 mm (5 inch)
• Grit: 80
• Arbor hole: 22.23 mm
• Max RPM: 12250 RPM
• Quantity: 20 pieces per pack
• Abrasive material: Blue zirconium corundum

Usage Recommendations

Use light, consistent pressure and keep the disc moving across the surface to avoid creating low spots. For stainless steel and INOX, allow the abrasive to do the work rather than forcing the wheel, because overheating can cause discoloration or work hardening. For edge contours and weld blending, the T29 conical profile helps maintain contact and follow shapes more smoothly than flat discs. 🔩

When switching from coarser to finer grits, remove any heavy burrs first with this 80-grit flap, then progress to 120 or finer as needed for finishing. Store unused discs in a dry place and check for cracks or damage before mounting. According to the manufacturer, the reinforced backing meets EN 13743 safety standards and comes with MPA certification, which addresses mechanical performance and safe operating limits.