Merit Abrasives 69957399699 Quick-change Disc 100 Grit

Product Description

The MERIT ABRASIVES 69957399699 is a Power-Lock Type 3 quick-change disc designed for use with handheld disc sanders in metal fabrication and surface prep applications. The disc measures 1.5 inches in diameter and cuts at 100 grit, placing it in the fine grade range for controlled material removal. The abrasive material is aluminum oxide, bonded to a coated cloth and polyester backing rated at Y-weight, 2-ply construction. Maximum operating speed is 30,000 RPM. Licensed HVAC, plumbing, and metalwork trades use discs like this for deburring, cleaning, and detailing on a range of ferrous and non-ferrous metals.

This disc is suited for surface preparation tasks on 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 weld seams, cleaning oxidation, and detailing tight areas where a larger disc cannot reach. The Power-Lock Type R attaching system allows fast disc changes on compatible handheld disc sanders, reducing downtime during multi-pass finishing work.

Key Features

• Aluminum oxide abrasive — durable and versatile across ferrous and non-ferrous metals
• Y-weight, 2-ply polyester and cloth backing for extended disc life and faster cut rate
• 100 grit fine grade for deburring, cleaning, and surface detailing
• Rigid backing maintains consistent contact on flat and contoured surfaces
• Power-Lock Type R attaching system for tool-free quick changes
• Rated to 30,000 RPM for compatibility with standard handheld disc sanders

Compatibility

Designed for use with handheld disc sanders equipped with a Power-Lock Type R quick-change attachment system. Compatible material applications include 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 powered off and disconnected from its power source. Verify the arbor attachment matches the Power-Lock Type R system before mounting. Do not exceed the 30,000 RPM maximum operating speed marked on the disc. Inspect the disc for cracks or damage before each use and discard any disc that shows signs of wear through the backing material.