Flap Disc KLINGSPOR SMT314 125 mm Grit 120 (MPN 322819)

KLINGSPOR SMT314 flap disc, 125 mm diameter with 120 grit abrasive, is designed for controlled grinding and finishing of metal and stainless steel. The disc features overlapping abrasive flaps mounted on a stable backing that ensures even stock removal and consistent surface blending. Intended for use with standard 125 mm angle grinders, this flap disc is suitable for preparing welds, deburring edges, removing rust and preparing surfaces for further treatment.

Advantages

The flap construction provides uniform wear and steady cutting action across the entire disc, reducing the risk of gouging. A 120 grit abrasive balances material removal and surface quality to leave a finer finish than coarser variants while still working efficiently on metal. The disc’s shape and flexible flaps adapt to contours and profiles, enabling access to edges and curved surfaces. Designed for workshop and industrial environments, the disc offers reliable life and predictable performance when used with appropriate speed-rated angle grinders.

Suitable for

• Grinding and blending weld seams on steel and stainless steel
• Deburring edges and removing sharp burrs
• Rust and scale removal from metal surfaces
• Surface preparation prior to painting, coating or welding
• Light shaping and finishing of profiles and contours

Key specifications

• Diameter: 125 mm
• Abrasion grit: 120
• Construction: overlapping abrasive flaps on a backing plate
• Intended use: metal and stainless steel grinding and finishing
• Compatibility: for use with 125 mm angle grinders

How to use

Mount the disc securely on a properly rated 125 mm angle grinder and always inspect the disc before use for damage or contamination. Operate the grinder at the manufacturer’s recommended speed range and apply moderate, even pressure while moving the disc across the workpiece to avoid localized overheating and excessive material removal. Use smooth, controlled passes along welds, edges or surfaces, allowing the abrasive flaps to wear evenly. Replace the disc when abrasive performance declines or when damage is visible.

Usage recommendations

Wear suitable personal protective equipment, including eye protection, gloves, hearing protection and a dust mask or respirator when grinding. Ensure the grinder’s guard is in place and follow all machine safety instructions. For best results on stainless steel, use light pressure and clean the surface after grinding to prevent contamination; for heavy rust or scale, start with a coarser grit flap disc and finish with this 120 grit disc for a smoother surface.