Flap Disc Irwin 125 mm x 22.23 mm P40 for wood, metal and plastics

Irwin flap disc 125 mm x 22.23 mm P40 is a coated abrasive wheel engineered for use on wood, metal and plastics. With a 125 mm diameter and 22.23 mm bore it fits angle grinders with the corresponding arbor size and delivers aggressive material removal while preserving a controlled shaping action. The P40 grit balances stock removal and surface refinement, making the disc suitable for deburring, weld finishing, edge blending and preparation before painting or bonding.

Advantages

The abrasive construction combines overlapping flaps for consistent cutting performance and longer life compared with single-layer discs. Open-flap design helps prevent clogging when working softer materials like wood and plastics, while the coarse P40 grit allows rapid removal of weld spatter, excess material and rough edges. The 125 mm diameter provides a good working area for fast coverage on flat and contoured surfaces, and the standard 22.23 mm bore ensures compatibility with most common angle grinders.

Suitable for

• Removing weld seams and spatter on steel and stainless steel
• Shaping and smoothing hardwood, softwood and composite panels
• Deburring and edge blending on metal fabrications
• Preparing surfaces for painting, coating or adhesive bonding
• Light stock removal on plastic parts and moldings

Key specifications

• Disc diameter: 125 mm
• Bore diameter (arbor): 22.23 mm
• Abrasion grit: P40 (coarse)
• Suitable materials: wood, ferrous and non-ferrous metals, plastics
• Construction: overlapping abrasive flaps

How to use

Install the flap disc onto a compatible angle grinder with a 22.23 mm arbor, observing the grinder manufacturer’s mounting instructions and ensuring the backing flange is fitted correctly. Operate the grinder at the recommended speed specified for the disc and apply moderate, even pressure across the workpiece; do not force the tool. Move the disc in a steady motion along the work surface to achieve uniform removal and avoid concentrating on a single spot to prevent gouging. Replace the disc when wear reduces cutting efficiency or when the backing becomes exposed.

Usage recommendations

Use appropriate personal protective equipment including eye protection, gloves and hearing protection. For best results on metals, start with coarse grit for rapid removal and follow with finer abrasives for a smoother finish. When working on plastics, test on a scrap piece first to verify speed and pressure to prevent melting or excessive heat buildup.