Merit Abrasives 69957399655 Quick-change Disc 3in 100G

Product Description

The MERIT ABRASIVES 69957399655 is a 3-inch coated quick-change abrasive disc designed for use with Power-Lock Type 2 (TS/Type II) attachment systems on handheld disc sanders. Running at up to 20,000 RPM, this disc is built for demanding metalworking tasks including deburring, surface cleaning, and detailing. The aluminum oxide abrasive is bonded to a rigid Y-weight 2-ply polyester and cloth backing, delivering a fast cut rate and extended service life. At 100 grit, it falls in the fine-to-medium range and is well suited for controlled material removal on hard and soft metals. Licensed HVAC, plumbing, and mechanical tradespeople working on metal pipe, sheet metal, or mechanical components will find this disc a practical tool for prep and finishing work.

This disc is intended for use on a wide range of ferrous and non-ferrous metals, including 300 series stainless steel, brass, bronze, hard carbon steels, soft carbon steels, and titanium. It is sized for compatibility with handheld disc sanders that accept Power-Lock Type S quick-change attachments. The Series R766 designation places it within a line engineered for industrial metalworking environments where consistent grit performance and backing integrity are required across repetitive passes.

Key Features

• 3-inch disc diameter with Power-Lock Type 2 (TS/Type II) quick-change attachment system
• 100 grit aluminum oxide abrasive for fine-to-medium material removal
• Y-weight 2-ply polyester and cloth backing rated Rigid flexibility for stability under load
• Maximum operating speed of 20,000 RPM
• Suitable for 300 series stainless steel, brass, bronze, hard carbon steels, soft carbon steels, and titanium
• Series R766 coated disc with brown backing and silver button color

Compatibility

Designed for handheld disc sanders equipped with a Type S Power-Lock quick-change attachment system (TS/Type II). Compatible material applications include 300 series stainless steel, brass, bronze, hard carbon steels, soft carbon steels, and titanium.

Installation Notes

Installation is performed by pressing the disc onto a compatible Type S quick-change mandrel until the locking mechanism engages. Always verify the tool spindle speed does not exceed the 20,000 RPM maximum rating before operation. Inspect the disc for damage or delamination before each use and replace if backing integrity is compromised. Use appropriate eye protection and follow applicable OSHA and shop safety guidelines when operating handheld disc sanders.