Merit Abrasives 69957399688 Quick-change Disc 120 Grit 1 in

Product Description

The MERIT ABRASIVES 69957399688 is a coated quick-change abrasive disc engineered for use with Power-Lock Type 3 (TR/Type III) attachment systems. At 1 inch in diameter, this disc runs at up to 40,000 RPM and delivers a fine, consistent cut using aluminum oxide abrasive grain. The Y-weight 2-ply polyester and cloth backing provides rigidity and durability, extending disc life while maintaining a fast cut rate. Grit is rated at 120, placing it in the fine-to-medium range suited for controlled material removal, surface finishing, and detailing work on metal substrates. Licensed trades and fabrication shops will find this disc well-matched to deburring and cleaning operations on tight or curved surfaces.

This disc is designed for use with handheld disc sanders equipped with a Type R attaching system and TR (Type III) quick-change compatibility. Rated material applications include 300 Series stainless steel, brass, bronze, hard carbon steels, soft carbon steels, and titanium. The rigid backing and aluminum oxide abrasive make it effective for deburring, cleaning, and surface detailing on both ferrous and non-ferrous metals. It is sold individually but carries a minimum order quantity of 100 units, making it appropriate for shop stocking or fleet supply purchasing.

Key Features

• 120 grit aluminum oxide abrasive for fine-to-medium material removal on metal substrates
• Y-weight 2-ply polyester and cloth backing for added rigidity and extended disc life
• Rated to 40,000 RPM for compatibility with high-speed handheld disc sanders
• Power-Lock Type 3 (TR/Type III) quick-change attachment with Type R system compatibility
• Suitable for 300 Series stainless, brass, bronze, hard and soft carbon steels, and titanium
• Rigid construction supports consistent contact and controlled cut rate on curved or confined surfaces

Compatibility

Compatible with handheld disc sanders using a Type R attaching system and TR (Type III) quick-change interface. Rated for use on 300 Series stainless steel, brass, bronze, hard carbon steels, soft carbon steels, and titanium.

Installation Notes

Installation is performed by trade professionals or fabricators using handheld disc sanders with a Type R quick-change spindle. Verify the tool spindle type matches TR (Type III) compatibility before mounting the disc. Always confirm the tool RPM rating meets or exceeds the disc maximum of 40,000 RPM before use. Inspect the disc for damage before each use and follow all applicable ANSI and tool manufacturer safety guidelines for abrasive disc handling.