3M 7000121849 Quick Change Disc 1.5 in Coarse Ao

Product Description

The 3M 7000121849 is a quick change surface conditioning disc designed for one-step workpiece preparation ahead of final finishes and coatings. Built on a non-woven, resin-reinforced open web construction with aluminum oxide abrasive, this 1.5-inch diameter disc mounts and dismounts rapidly on compatible quick change tools. It delivers consistent cut rates on flat surfaces and light edgework. Rated at a coarse grade, it is load-resistant and handles both ferrous and non-ferrous metals as well as composites without gouging the base material. Licensed metalworkers and fabricators use it in production and maintenance environments where prep speed matters.

This disc is suited for industrial metal prep tasks including surface cleaning, deburring, and light material removal on flat workpieces and mild edge profiles. Its open web structure resists loading, making it a practical choice for aluminum and other soft metals that tend to clog conventional abrasives. The flexible, pliable web conforms enough for edgework without sacrificing cut consistency on flat stock. Typical applications include weld prep, paint and coating removal, and general surface conditioning in fabrication, maintenance, and repair settings.

Key Features

• Coarse-grade aluminum oxide abrasive for moderately aggressive material removal, cleaning, and deburring
• Non-woven resin-reinforced open web construction resists loading on aluminum and soft non-ferrous metals
• Flexible, pliable disc removes burrs and surface contaminants without gouging the substrate
• Quick change mounting system allows fast disc swaps to reduce downtime at the tool
• 1.5-inch diameter suits compact angle grinders and die grinders with quick change arbors
• Effective on flat surfaces and some edgework across ferrous metals, non-ferrous metals, and composites

Compatibility

Designed for use with quick change disc tools accepting 1.5-inch diameter surface conditioning discs. Compatible with ferrous and non-ferrous metals and composite workpieces in industrial fabrication and maintenance applications.

Installation Notes

Installation and disc changes should be performed with the tool fully powered down and disconnected from its power source. Verify that the quick change arbor type and size match the disc hub before mounting. Wear appropriate PPE including eye protection and gloves during disc changes and operation. Follow tool manufacturer torque and speed rating guidelines to avoid disc failure during use.