3M 7100083803 Scotch-brite 645DC Unitized Diamond Wheel 3 in

Product Description

The 3M 7100083803 is a Scotch-Brite 645DC unitized surface conditioning wheel designed for the removal and pre-polishing of extra-hard materials. It incorporates diamond mineral abrasive, making it effective on carbide thermal spray coatings, ceramics, and similarly hard substrates. The wheel is capable of removing material and finishing the surface in a single step, producing a consistent Ra finish in the 12 to 16 range. At 3 inches in diameter, it is suited for precision grinding and finishing tasks where burr-free, repeatable surface quality is required.

This wheel is used in industrial and metalworking applications where standard abrasives fall short on hardness. Typical scenarios include finishing thermally sprayed components, deburring carbide parts, and pre-polishing ceramics prior to final surface treatment. It is appropriate for use by machinists, tool and die technicians, and maintenance professionals working with high-wear or hard-coated components in manufacturing and maintenance environments.

Key Features

• Diamond mineral abrasive construction enables stock removal and finishing on carbide, ceramic, and thermal spray materials
• Removes and finishes thermal spray parts in a single step with Ra in the 12 to 16 range
• Unitized wheel construction delivers a consistently fine, burr-free surface finish
• 3 inch diameter suits precision bench grinders and rotary tool applications

Compatibility

Designed for use on extra-hard materials including carbide thermal spray coatings and ceramics. Suitable for rotary grinding and surface conditioning equipment that accepts 3 inch diameter unitized wheels.

Installation Notes

Mount on a compatible bench grinder or rotary tool rated for the wheel diameter before operation. Confirm the spindle speed of the tool does not exceed the maximum rated speed marked on the wheel. Wear appropriate PPE including eye protection and gloves when operating abrasive wheels. Inspect the wheel for cracks or damage before each use and do not use a damaged wheel.

Technical Specifications

• Diameter: 3 inches
• Wheel Type: Unitized
• Abrasive Mineral: Diamond
• Surface Finish Range (Ra): 12 to 16
• Package Dimensions: 6.7 x 6.7 x 3.1 inches
• Weight: 1.16 pounds
• Unit of Measure: Each
• UPC: 048011650871

Standard Information

• Brand: 3M
• Manufacturer Part Number: 7100083803