3M 7010329878 Scotch-brite 645DC Diamond Wheel 6 in

Product Description

The 3M 7010329878 is a unitized surface conditioning wheel from the Scotch-Brite 645DC line, engineered specifically for the removal and pre-polishing of extra-hard materials. Diamond mineral is integrated throughout the wheel construction, making it suited for working carbide thermal spray coatings and ceramics where conventional abrasives fall short. The wheel measures 6 inches in diameter and 1 inch thick and is designed for use on bench grinders, pedestal grinders, or compatible right-angle tools. Licensed trades professionals and precision grinding shops use this wheel when a consistent, controlled surface finish is required on hard-to-machine substrate materials.

This wheel is used in applications involving carbide thermal spray components and ceramic surfaces that require stock removal combined with a refined surface finish in a single operation. It is particularly common in maintenance, repair, and overhaul environments where finishing tolerance is tight. The 645DC delivers a surface roughness average in the Ra 12-16 range, allowing operators to remove and finish thermal spray parts without switching to a separate polishing step. Both commercial and industrial settings benefit from the consistent, burr-free finish the diamond mineral produces.

Key Features

• Diamond mineral construction enables removal and pre-polishing of carbide thermal spray and ceramic surfaces
• Removes and finishes thermal spray parts in one step with Ra in the 12-16 range
• Unitized wheel design maintains consistent cutting action throughout wheel life
• Delivers a fine, burr-free finish on extra-hard materials
• 6 inch diameter and 1 inch thick configuration suits standard bench and pedestal grinder arbors

Compatibility

Designed for use on compatible bench grinders, pedestal grinders, and right-angle tools accepting a 6 inch diameter unitized conditioning wheel. Suitable for carbide thermal spray and ceramic workpieces requiring combined stock removal and pre-polishing in a single operation.

Installation Notes

Mounting should be performed by a qualified operator following the grinder or tool manufacturer's wheel guard and arbor specifications. Inspect the wheel for damage before mounting and confirm the tool's rated RPM meets or exceeds the wheel's maximum operating speed. Power down and lock out the grinder before installing or removing the wheel. Eye protection and appropriate PPE are required during operation per applicable ANSI and OSHA standards.

Technical Specifications

• Wheel Diameter: 6 inches
• Wheel Thickness: 1 inch
• Abrasive Mineral: Diamond
• Wheel Type: Unitized Surface Conditioning
• Surface Finish Range: Ra 12-16
• Weight: 2.697 pounds
• Package Length: 6.9 inches
• Package Width: 6.9 inches
• Package Height: 4.4 inches
• Unit of Measure: Each
• UPC: 048011650864

Standard Information

• Brand: 3M
• Manufacturer Part Number: 7010329878