Merit Abrasives 69957399687 Quick-change Disc 100 Grit 1 in

Product Description

The MERIT ABRASIVES 69957399687 is a 1-inch diameter quick-change abrasive disc designed for use with TR (Type III) and Type R attaching systems on handheld disc sanders. It carries a 100-grit aluminum oxide abrasive bonded to a rigid, X-weight 2-ply cloth and polyester backing for durability and a fast cut rate. Rated to 40,000 RPM, this disc is built for consistent stock removal on hard and soft metals in demanding trade environments. Licensed HVAC, fabrication, and maintenance technicians use discs in this series for deburring, surface cleaning, and detail work where a fine, controlled cut is required.

This disc is suited for work on 300 series stainless steel, brass, bronze, hard carbon steels, soft carbon steels, and titanium. It fits standard handheld disc sanders equipped with TR (Type III) or Type R quick-change spindles. The rigid backing maintains disc geometry under load, which is important when working on tight radii or contoured surfaces in plumbing, HVAC, and light fabrication applications. Individual packaging with a minimum order quantity of 100 units makes this disc appropriate for shop stocking or job-site supply.

Key Features

• 100-grit aluminum oxide abrasive provides fine, controlled material removal
• TR (Type III) and Type R quick-change compatibility for fast disc swaps on handheld sanders
• X-weight 2-ply cloth and polyester backing rated for rigid, high-stress grinding applications
• 40,000 RPM maximum speed rating suits high-speed handheld tools
• Coated abrasive construction extends disc life and maintains cut rate over time
• Approved for use on stainless steel, brass, bronze, carbon steels, and titanium

Compatibility

Designed for use with handheld disc sanders equipped with TR (Type III) or Type R quick-change spindle systems. Compatible material applications include 300 series stainless steel, brass, bronze, hard carbon steels, soft carbon steels, and titanium.

Installation Notes

Install and remove the disc only when the tool is powered off and disconnected from its power source. Confirm the tool spindle type matches the TR (Type III) or Type R attaching system before mounting. Do not exceed the 40,000 RPM maximum speed rating of the disc. Inspect the disc for damage before each use and replace immediately if cracks, tears, or delamination are present.