3M 7000120703 Deburring Disc 4 Inch Medium Aluminum Oxide

Product Description

The 3M 7000120703 is an aluminum oxide deburring disc designed for removing burrs, sharp edges, and surface imperfections on metal workpieces. With a 4-inch diameter and medium grade abrasive, it delivers consistent stock removal without aggressive surface damage. The disc mounts via a 1/4-inch shank connector, making it compatible with standard die grinders and drill presses. Rated to 6000 RPM maximum, it suits a wide range of rotary tool setups. Machinists, fabricators, and maintenance technicians use this disc for finishing operations on ferrous and non-ferrous metals in shop and field environments.

This deburring disc is suited for metalworking applications where a controlled, medium-cut finish is required. Common uses include edge preparation on machined parts, weld seam cleanup, and hole deburring on structural components. The shank mount design allows quick attachment to air-powered or electric die grinders. At 1-1/4 inches thick, the disc provides sufficient depth for consistent contact across irregular surfaces. Applicable in light manufacturing, maintenance repair operations, and general fabrication shops.

Key Features

• 4-inch diameter aluminum oxide abrasive disc for medium-grade deburring and edge finishing
• 1/4-inch shank connector for use with standard die grinders and rotary tools
• 6000 RPM maximum speed rating for safe operation at typical die grinder speeds
• 1-1/4 inch disc thickness provides extended contact surface for uniform material removal
• Aluminum oxide abrasive material suited for use on steel, iron, and general metal alloys

Compatibility

Designed for use with die grinders and rotary tools accepting a 1/4-inch shank attachment. Suitable for deburring and edge finishing operations on common ferrous and non-ferrous metal workpieces.

Installation Notes

Installation and use should be performed by qualified machinists or fabricators familiar with rotary abrasive tools. Verify that the tool spindle speed does not exceed the 6000 RPM maximum rating of the disc before operation. Secure the 1/4-inch shank fully into the collet and confirm the locking mechanism is tight before powering on. Always wear appropriate PPE including eye protection and gloves when operating abrasive discs.