Abrasive Flap Disc MODECO MN-68-821 125 mm, Grit 40

MODECO MN-68-821 abrasive flap disc, 125 mm diameter with grit 40, is engineered for use with angle grinders to carry out fast material removal, surface blending and deburring on metal and other hard substrates. The layered abrasive flaps provide consistent cutting action and gradual wear, enabling controlled stock removal and shaping before welding, paint stripping or finishing operations.

Advantages

The 125 mm diameter and aggressive grit 40 combine to deliver effective removal rates while maintaining a uniform finish. Stacked flap construction ensures even wear, reduces vibration and allows the abrasive to conform to contours and edges. Suitable for sustained work on steel, stainless steel and other hard materials, the disc offers predictable life and stable performance when used at the recommended speeds.

Suitable for

• Metal surface preparation prior to welding or coating
• Paint and rust removal from ferrous surfaces
• Deburring and edge blending on fabricated parts
• Shaping and smoothing welds and joints
• General stock removal on hard materials

Key specifications

• Diameter: 125 mm
• Abrasive grit: 40 (coarse)
• Construction: stacked abrasive flaps
• Intended tool: angle grinder
• Primary materials: metal and other hard substrates

How to use

Mount the flap disc on a compatible angle grinder following the tool manufacturer's mounting instructions and safety standards. Use appropriate personal protective equipment including eye protection, gloves and hearing protection. Start with moderate contact pressure, allowing the abrasive flaps to remove material progressively; increase pressure only as needed to maintain cutting action. Work across the surface with steady, overlapping passes to achieve an even result and avoid dwelling in one spot to prevent overheating or excessive wear.

Usage recommendations

Operate the disc within the grinder's rated speed range and avoid side-loading beyond the disc's intended use. For best results on stainless steel, use light pressure and frequent cooling intervals to reduce discoloration. Replace the disc when flap wear reduces cutting performance or when structural damage is visible.