3M 7100138285 Bristle Disc 2in X 5/8 Tapered Coarse Abrasive

Product Description

The 3M 7100138285 is a Roloc-style abrasive bristle disc designed for surface preparation and finishing on aluminum, steel, and other metals. Unlike traditional wire brushes, this disc uses molded, abrasive-filled bristle construction that conforms to irregular surfaces and contours without gouging the base material. The 2-inch diameter and 5/8 tapered arbor hole allow quick attachment to standard Roloc-compatible angle grinders and die grinders. Coarse-grit fill makes it suited for aggressive material removal while still leaving a workable surface condition. Licensed trades and shop technicians use this disc when speed and surface integrity both matter.

This bristle disc is used across automotive, fabrication, and general metalworking applications. Common tasks include deburring machined or cut edges, blending weld beads, removing rust and scale, stripping coatings and paint, and cleaning surface defects and scratches before refinishing or inspection. The molded bristle design reduces loading on softer metals like aluminum, making it a practical choice when wire brushes risk contamination or damage to the substrate. Sold in a minimum quantity of 4 per box.

Key Features

• Molded abrasive-filled bristle construction conforms to contoured and irregular surfaces
• Coarse grit for aggressive deburring, rust removal, and coating strip
• 2-inch diameter with 5/8 tapered arbor for Roloc-compatible tool attachment
• Safe on aluminum — no wire bristle contamination risk
• Multi-task capability: deburring, blending, finishing, polishing, and cleaning in one disc
• Minimum order quantity of 4 discs per box for job-site stocking

Compatibility

Designed for use with Roloc-compatible angle grinders and die grinders accepting a 5/8 tapered arbor attachment. Suitable for use on aluminum, steel, and general metal substrates.

Installation Notes

This disc is installed and operated by automotive technicians, metal fabricators, and general tradespeople using Roloc-compatible pneumatic or electric grinders. Ensure the tool is powered off and fully stopped before attaching or removing the disc. Always wear appropriate eye protection and gloves when operating abrasive discs. Follow tool manufacturer guidelines for maximum RPM ratings to confirm compatibility with this disc size.

Technical Specifications

• Diameter: 2 inches
• Arbor Size: 5/8 tapered
• Grit Type: Coarse
• Construction: Molded abrasive-filled bristle
• Weight: 0.56 pounds
• Unit of Measure: Box
• Minimum Quantity: 4
• UPC: 30051131075246

Standard Information

• Brand: 3M
• Manufacturer Part Number: 7100138285