Merit Abrasives 08834171195 Psa Disc 4 in 120 Grit

Product Description

The MERIT ABRASIVES 08834171195 is a pressure-sensitive adhesive (PSA) abrasive disc designed for surface finishing and material removal in trade and industrial applications. The disc measures 4 inches in diameter and uses 120-grit aluminum oxide as the abrasive material, placing it in the fine-grit range for controlled stock removal and surface preparation. A cloth backing provides durability and flexibility, allowing the disc to conform to contoured surfaces without tearing under moderate pressure. No vacuum holes are included. The disc is sold individually and is suited for use on sanders, grinders, and similar power tools that accept PSA-mount abrasive discs.

This disc is appropriate for metal fabrication, woodworking, and general surface prep work in residential and commercial settings. The aluminum oxide abrasive and cloth backing combination performs well on ferrous metals, hardwoods, and composites. The flexible construction makes it a practical choice for technicians and tradespeople finishing irregular or curved surfaces where a rigid disc would bridge or skip. At 120 grit, it is typically used in intermediate finishing stages after coarser material removal is complete.

Key Features

• 4-inch diameter with PSA (pressure-sensitive adhesive) mounting for quick disc changes
• 120-grit aluminum oxide abrasive for fine-grade surface finishing
• Flexible cloth backing conforms to curved and contoured work surfaces
• Black disc color with no vacuum holes
• Sold as a single disc (package quantity of 1)

Compatibility

Designed as an OEM-style replacement or standard consumable for 4-inch PSA-mount random orbital sanders, disc sanders, and finishing tools that accept adhesive-backed abrasive discs.

Installation Notes

Installation is performed by tradespeople, machinists, or finish carpenters using power sanders equipped with a PSA backing pad. Ensure the backing pad surface is clean and free of debris before applying the disc to achieve full adhesive contact. Power down and disconnect the tool from its power source before changing abrasive discs. Discard discs that show glazing, tearing, or loss of grit to maintain consistent finish quality.