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The 3M 7100225148 is a 3-inch diameter Roloc-style abrasive disc designed for coarse grinding tasks in collision repair and metalworking. Built with a ceramic aluminum oxide abrasive grain, this 60-grit disc removes paint, rust, and welds efficiently. The Roloc attachment system lets technicians lock the disc onto a compatible backing pad with a simple quarter-turn twist, eliminating the need for adhesives or separate fasteners. Color-coded by grit grade, it supports fast visual identification on the shop floor. The small 3-inch format is particularly effective in confined areas where larger discs cannot maneuver.
This disc is intended for use in automotive collision repair shops, metal fabrication environments, and body shop applications. The coarse 60-grit cut rate makes it well suited for initial surface prep, weld seam grinding, and heavy paint or corrosion removal on steel panels. The Roloc mount is compatible with standard quarter-inch shanked drill chucks and pneumatic die grinders or angle tools equipped with a Roloc-style mandrel. Sold in a box with a minimum order quantity of 10 discs.
Designed for use with Roloc-style backing pads and mandrels that accept quarter-inch shank tooling, including pneumatic die grinders and electric drills commonly used in collision repair and metal fabrication.
Installation is performed by collision repair technicians or metal fabricators. Before mounting the disc, confirm the backing pad mandrel is securely seated in the tool and the tool is powered off or the air supply is disconnected. Align the disc hub with the mandrel and rotate to lock. Always verify the disc is fully engaged before operating the tool, and wear appropriate eye and face protection during grinding operations.
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