Flap Disc KLINGSPOR SMT624 SUPRA 125 mm grit 40

Flap Disc KLINGSPOR SMT624 SUPRA 125 mm grit 40 is a 125 mm diameter abrasive disc designed for coarse material removal, surface grinding, deburring and edge blending on metal and other common workshop materials. The multi-layered flap construction uses overlapping abrasive flaps that wear progressively, maintaining a consistently aggressive cutting action and longer service life compared with single-layer abrasives. The disc is intended for use with angle grinders and for manual handheld grinding operations where fast stock removal is required.

Advantages

The layered flap design ensures uniform wear and sustained cutting performance over the life of the disc, reducing downtime for frequent disc changes. A coarse 40 grit abrasive provides rapid removal of weld seams, scale and rust while delivering an even surface finish suitable for subsequent finishing steps. The 125 mm diameter offers a balance between coverage area and control for handheld grinding tasks. Constructed for durability, the flap disc resists glazing and clogging during aggressive grinding.

Suitable for

• Removing weld beads and weld seam grinding on steel
• Deburring edges after cutting or machining
• Surface preparation prior to painting or coating
• Rust and scale removal from metal surfaces
• General coarse stock removal and shaping

Key specifications

• Disc diameter: 125 mm
• Abrasive grit: 40 (coarse)
• Multi-layer flap construction for progressive wear
• Intended application: surface grinding, deburring, edge blending
• Compatible tool: angle grinder / handheld grinders

How to use

Mount the flap disc on a compatible angle grinder according to the grinder manufacturer's instructions and ensure the disc is securely fastened. Operate the grinder at the recommended speed range printed by the disc and avoid excessive pressure; let the abrasive do the work. Move the disc steadily across the workpiece to achieve even material removal and prevent gouging. Replace the disc when abrasive performance declines or when the flap material is excessively worn.

Usage recommendations

Use appropriate personal protective equipment including eye protection, gloves and hearing protection. Secure the workpiece to avoid movement and ensure proper ventilation when grinding metals. For best results, start with the coarse 40 grit flap disc for heavy stock removal and follow with a finer grit disc for smoother finishes.