3M 7100143478 Scotch-brite Hs-dc Abrasive Disc 4 Inch

Product Description

The 3M 7100143478 is the Scotch-Brite HS-DC High Strength Disc, a non-woven abrasive disc engineered for general-purpose surface conditioning on metal workpieces. Built on a durable open-web construction, the disc uses aluminum oxide abrasive grain to clean, deburr, denib, defuzz, and produce consistent satin finishes. The open-web structure resists loading and runs cool, which maintains a steady cut rate from first use through the end of disc life. At 4 inches in diameter with a 1/2 inch arbor hole, it mounts to standard right-angle grinders and disc tools used in fabrication and finishing applications. Each disc is sold individually.

This disc is suited for metal surface preparation work in fabrication shops, maintenance environments, and light manufacturing settings. Typical applications include deburring cut edges, cleaning weld zones, removing mill scale, and achieving a uniform satin finish on stainless steel, aluminum, and other metals. The conformable disc body follows surface contours, making it effective on both flat stock and shaped workpieces. Multiple discs can be stacked on a single arbor to increase surface coverage or effective working thickness on deeper deburring tasks.

Key Features

• Non-woven open-web construction resists loading and maintains cut rate throughout disc life
• Aluminum oxide abrasive grain handles deburring, cleaning, denibing, and satin finishing on a wide range of metals
• Conformable body with wear-resistant edge follows contours and delivers consistent finishes
• Stackable design allows expanded coverage or increased working thickness for heavier stock removal
• Runs cool, reducing heat transfer to the workpiece during extended use
• 4 inch diameter with 1/2 inch arbor hole fits standard disc grinder and finishing tool spindles

Compatibility

Designed for use with right-angle grinders and disc-type finishing tools accepting a 1/2 inch arbor and a 4 inch disc. Suitable for surface conditioning, deburring, and finishing on stainless steel, aluminum, mild steel, and other common metals.

Installation Notes

Installation should be performed by a qualified metalworker or maintenance technician familiar with abrasive disc tools. Disconnect and de-energize the tool before mounting or removing any disc. Verify the tool spindle speed does not exceed the maximum rated speed of the disc, and confirm the arbor size matches before operation. Inspect the disc for damage before each use and replace if tears, cracks, or excessive wear are present.

Technical Specifications

• Disc Diameter: 4 inches
• Arbor Size: 1/2 inch
• Abrasive Type: Aluminum Oxide (AO)
• Construction: Non-woven open-web
• Unit of Measure: Each
• Weight: 0.02 pounds
• UPC: 00048011160290

Standard Information

• Brand: 3M
• Manufacturer Part Number: 7100143478