Merit Abrasives 69957399796 Quick-change Disc 320 Grit

Product Description

The MERIT ABRASIVES 69957399796 is a coated quick-change abrasive disc engineered for use with Power-Lock Type 1 (TP/Type P) handheld disc sanders. This disc measures 3 inches in diameter and carries a 320-grit aluminum oxide abrasive surface, placing it in the extra fine grade range. The backing is a Y-weight 2-ply polyester construction rated rigid, providing durability and a faster cut rate compared to lighter-weight backings. At a maximum operating speed of 20,000 RPM, it delivers consistent stock removal for finishing and detailing tasks on metal surfaces. Licensed trades and fabricators typically reach for this disc during surface prep, deburring, and cleaning operations.

This disc is suited for use on 300 series stainless steel, brass, bronze, hard carbon steels, soft carbon steels, and titanium. The extra fine 320 grit makes it appropriate for final deburring passes, light cleaning, and surface detailing rather than aggressive material removal. It is designed for handheld disc sander applications in both shop and field environments. The brown, aluminum oxide coated face with polyester backing holds up well across repeated passes on hard and soft metals alike, reducing disc changes during production or service work.

Key Features

• 320 grit extra fine aluminum oxide abrasive for deburring, cleaning, and detailing
• Y-weight 2-ply polyester backing rated rigid for extended disc life and faster cut rate
• Power-Lock Type 1 (TP/Type P) quick-change attachment for tool-free disc swaps
• Rated to 20,000 RPM maximum operating speed
• Compatible with 300 series stainless, brass, bronze, hard and soft carbon steels, and titanium
• Series R766 construction with coated brown face for consistent abrasive performance

Compatibility

Designed for handheld disc sanders using the Power-Lock Type 1 (TP/Type P) quick-change attachment system. Rated for use on 300 series stainless steel, brass, bronze, hard carbon steels, soft carbon steels, and titanium.

Installation Notes

Installation and disc changes should be performed with the sander fully powered down and disconnected from its power source. Verify the disc is fully seated and locked into the Power-Lock Type 1 quick-change hub before resuming operation. Never operate this disc above its rated maximum speed of 20,000 RPM. Inspect the disc for tears, delamination, or damage before each use and replace if any defects are present.