3M 7000120939 Scotch-brite Exl Unitized Wheel 6 in Fine

Product Description

The 3M 7000120939 is a Scotch-Brite EXL Unitized Wheel designed for smoothing, deburring, and finishing operations on metal alloys, plastics, and composites. The wheel measures 6 inches in diameter and uses silicon carbide abrasive at a fine grit rating. Its soft, conformable construction keeps the abrasive in consistent contact with the workpiece surface, which is especially important when working intricate profiles or edges. This type of wheel is commonly used by machinists, fabricators, and metalworking professionals on bench grinders or automated finishing equipment.

This wheel suits a broad range of surface preparation and finishing tasks in metal fabrication, manufacturing, and light industrial applications. Fine grit silicon carbide construction makes it appropriate for final-pass deburring, edge blending, and pre-polish surface conditioning on ferrous and non-ferrous metals as well as select plastics and composites. It is well-suited for both manual bench grinding setups and robotic or automated processing lines where consistent conformability across complex part geometries is required.

Key Features

• Silicon carbide abrasive at fine grit for controlled material removal and surface finishing
• Soft, conformable unitized construction maintains abrasive contact on complex and irregular part shapes
• Bidirectional design operates clockwise or counterclockwise without performance loss
• Minimizes heat buildup, reducing risk of thermal damage to heat-sensitive base materials
• Resists smearing for cleaner cut surfaces and reduced prep work between passes
• Wheel edge can be dressed to restore cutting geometry for deburring, finishing, and polishing

Compatibility

Designed as an OEM-style replacement or direct fitment wheel for bench grinders and automated finishing equipment accepting 6-inch diameter unitized abrasive wheels.

Installation Notes

Installation should be performed by a qualified operator familiar with abrasive wheel safety per ANSI B7.1 guidelines. Power down and lock out the grinder or finishing spindle completely before mounting or removing any abrasive wheel. Verify that the machine spindle speed rating meets or exceeds the maximum RPM rating of the wheel before operation. Inspect the wheel for cracks or damage prior to each use and never operate a damaged wheel.

Technical Specifications

• Abrasive Material: Silicon Carbide
• Grit: Fine
• Wheel Diameter: 6 inches
• Package Length: 6.7 inches
• Package Width: 6.7 inches
• Package Height: 3.1 inches
• Weight: 1.25 pounds
• Unit of Measure: Each

Standard Information

• Brand: 3M
• Manufacturer Part Number: 7000120939