Merit Abrasives 69957399760 Quick-change Disc 320 Grit

Product Description

The MERIT ABRASIVES 69957399760 is a 1-inch quick-change abrasive disc designed for precision surface finishing in demanding trade and industrial applications. Built on a rigid polyester backing with a Y-weight construction, this coated disc uses aluminum oxide abrasive at 320 grit (Extra Fine) to deliver consistent scratch patterns and controlled material removal on metal, composites, and painted surfaces. The Power-Lock Type P attaching system allows fast disc changes without tools, reducing downtime during repetitive grinding or finishing operations. Rated to 40,000 RPM, this disc is engineered for use with compatible high-speed rotary tools and die grinders.

This disc is suited for metal fabrication, automotive body work, weld blending, and fine surface prep work where a controlled, extra-fine finish is required before coating or inspection. Its compact 1-inch diameter makes it effective in tight spaces and contoured areas where larger discs cannot reach. The brown coated cloth face resists loading and maintains cutting performance across the working surface. Minimum order quantity is 100 units, sold individually per package.

Key Features

• 320 grit aluminum oxide abrasive for extra-fine surface finishing
• Rigid polyester backing with Y-weight construction for consistent performance
• Power-Lock Type P attaching system for tool-free quick changes
• 40,000 RPM maximum rated speed for high-speed rotary tool compatibility
• Compact 1-inch diameter for access in confined or contoured work areas
• Coated abrasive construction resists loading during finish passes

Compatibility

Designed for use with Power-Lock Type P quick-change mandrels and compatible die grinders or rotary tools that accept 1-inch quick-change discs rated to 40,000 RPM.

Installation Notes

This disc is installed and serviced by machinists, metal fabricators, and maintenance technicians using compatible Power-Lock mandrels. Always confirm the tool spindle speed does not exceed the disc maximum rating of 40,000 RPM before operation. Wear appropriate PPE including eye protection and gloves during disc changes and grinding operations. Inspect each disc for damage or delamination before use and discard any disc showing signs of wear through to the backing.