Merit Abrasives 69957399791 Quick-change Disc 3in 100G

Product Description

The MERIT ABRASIVES 69957399791 is a coated aluminum oxide quick-change disc engineered for use with Power-Lock Type 1 (TP/Type P) attaching systems on handheld disc sanders. The disc measures 3 inches in diameter, carries a 100-grit fine abrasive, and is rated to 20,000 RPM. It features a rigid, X-weight 2-ply polyester backing that resists flex under load and extends service life. The aluminum oxide grain delivers a consistent cut rate across a range of metals, making this disc a practical choice for deburring, surface cleaning, and detail work where controlled stock removal is needed.

This disc is suited for metalworking applications in both shop and field environments. Material applications include 300 Series stainless steel, brass, bronze, hard carbon steels, soft carbon steels, and titanium. It is part of the R766 Series, which is designed for use with handheld disc sanders fitted with a compatible TP-style quick-change hub. The rigid backing maintains disc geometry during aggressive passes, which is particularly useful when working on curved or irregular metal surfaces.

Key Features

• 100-grit aluminum oxide abrasive provides fine, controlled cut for deburring and detailing
• Rigid X-weight 2-ply polyester backing resists flex and extends disc life
• Rated to 20,000 RPM for compatibility with standard handheld disc sanders
• Power-Lock Type 1 (TP/Type P) quick-change attachment for fast disc swaps without tools
• Compatible with 300 Series stainless, brass, bronze, carbon steels, and titanium
• R766 Series coated construction balances durability with cut rate

Compatibility

Designed for use with handheld disc sanders equipped with a TP (Type I) or Type P quick-change hub. Rated for deburring and surface work on 300 Series stainless steel, brass, bronze, hard carbon steels, soft carbon steels, and titanium.

Installation Notes

Installation is performed by metalworkers and fabricators using a compatible TP-style quick-change hub. Ensure the hub and arbor are clean and undamaged before mounting the disc. Do not exceed the rated 20,000 RPM maximum speed. Inspect the disc for tears, cracks, or delamination before each use and discard if any damage is present.