Merit Abrasives 69957399633 Quick-change Disc 150 Grit

Product Description

The MERIT ABRASIVES 69957399633 is a coated quick-change abrasive disc designed for use with Power-Lock Type 2 (Type S) attachment systems. At 1.5 inches in diameter and 150 grit, it falls in the very fine grade range, making it suited for finish sanding, light material removal, and surface prep on metal and similar substrates. The disc uses aluminum oxide abrasive on a rigid polyester backing, providing consistent cut and durability in tight or contoured work areas. Rated to 30,000 RPM, it is compatible with standard quick-change die grinders and rotary tools used by machinists, fabricators, and maintenance technicians.

This disc is intended for precision surface finishing applications where a controlled, fine scratch pattern is needed. Its small 1.5-inch diameter makes it practical for weld cleanup, spot finishing, and prep work in confined areas where larger discs cannot reach. The Type S button attachment allows rapid disc changes without tools, reducing downtime during production or field work. The brown cloth-backed design and rigid construction help maintain consistent abrasive contact across the work surface.

Key Features

• 150 grit aluminum oxide abrasive for very fine material removal and surface finishing
• Power-Lock Type S attachment system for tool-free quick changes
• Rigid polyester backing maintains flat, consistent abrasive contact
• Rated to 30,000 RPM for use with standard die grinders and rotary tools
• 1.5-inch diameter suits confined areas and detailed finish work
• Series R766 construction with silver button color for quick visual identification

Compatibility

Designed for use with Power-Lock Type 2 (Type S) quick-change mandrels on die grinders and rotary tools rated to accept 1.5-inch abrasive discs at up to 30,000 RPM.

Installation Notes

Installation is performed by pressing the disc onto a compatible Type S quick-change mandrel until the button locks securely. Verify the tool RPM rating does not exceed the 30,000 RPM maximum before use. Always inspect the disc for damage before mounting, and ensure the mandrel and tool spindle are in good condition. Wear appropriate eye and face protection during operation in accordance with ANSI and applicable shop safety standards.