3M 7000120704 Deburring Disc 3 in Medium Aluminum Oxide

Product Description

The 3M 7000120704 is an aluminum oxide deburring disc designed for fast, consistent edge and surface finishing on metal workpieces. The disc measures 3 inches in diameter and 1-1/4 inches in thickness, and it mounts via a 1/4-inch shank for use with standard die grinders and drill presses. Rated to 8500 RPM, it handles medium-grade deburring tasks including edge cleanup, flash removal, and light surface blending. Machinists, fabricators, and maintenance technicians working in metal fabrication, HVAC ductwork prep, and general industrial environments are the primary users of this type of abrasive tooling.

This disc is suited for deburring and finishing operations on ferrous and non-ferrous metals in both shop and field settings. Its shank-mount design makes it compatible with rotary tools commonly found at fabrication benches and mechanical service locations. The medium grade abrasive provides an effective cut rate for removing sharp edges and burrs left by drilling, punching, sawing, or plasma cutting without excessive stock removal.

Key Features

• Aluminum oxide abrasive material for durable, consistent cutting action on metal
• 3 inch disc diameter with 1-1/4 inch thickness for stable contact during deburring
• 1/4 inch shank connector for use with standard die grinders and rotary tools
• 8500 RPM maximum speed rating
• Medium grade abrasive suited for edge cleanup and burr removal without aggressive stock removal

Compatibility

Designed for use with die grinders and rotary power tools accepting a 1/4 inch shank accessory. Suitable for deburring and finishing operations on metal surfaces in fabrication and maintenance applications.

Installation Notes

Installation should be performed by a qualified technician familiar with rotary abrasive tooling. Confirm the tool spindle speed does not exceed the 8500 RPM maximum rating before mounting the disc. Secure the shank fully in the tool collet and inspect the disc for damage before each use. Always wear appropriate eye and face protection when operating rotary abrasive accessories.