3M 7100138161 Mounted Flap Wheel 60 Grit Ceramic Alumina

Product Description

The 3M 7100138161 is a mounted flap wheel designed for grinding, blending, and finishing operations on metal and other hard surfaces. It uses a ceramic alumina abrasive on a cloth backing, delivering aggressive and consistent stock removal at a medium 60-grit grade. The 1/4-inch shank mounts directly into a die grinder or drill press, making it practical for confined areas and contoured surfaces. With a maximum rated speed of 22,000 RPM, it suits high-speed rotary tools commonly used by fabricators, machinists, pipefitters, and welders during surface prep and weld blending tasks.

This flap wheel is suited for use in metal fabrication shops, pipe fabrication, maintenance and repair operations, and light manufacturing environments. Its 1-1/2-inch diameter and 1-inch face width make it well-matched for work on tubing, pipe interiors, brackets, and tight-clearance weld joints where larger grinding wheels cannot reach. The coated ceramic alumina construction supports both ferrous and non-ferrous metal applications.

Key Features

• 60-grit ceramic alumina abrasive for aggressive material removal and consistent finish
• Cloth backing provides flexibility and conformability on curved or irregular surfaces
• 1/4-inch shank mounts in standard die grinders, flex-shaft tools, and drill presses
• Rated to 22,000 RPM maximum for use with high-speed rotary tools
• 1-1/2-inch diameter and 1-inch face width suited for confined and contoured work areas
• No interleaf construction for direct abrasive contact and efficient cutting action

Compatibility

Designed for use with standard 1/4-inch collet die grinders, straight grinders, and drill presses. Suitable as a direct-fit mounted flap wheel for metal grinding and blending applications requiring a 1/4-inch shank attachment.

Installation Notes

Installation is performed by trades and operators familiar with handheld rotary grinding tools. Before mounting, confirm the tool spindle speed does not exceed the 22,000 RPM rating marked on this wheel. Secure the shank fully into the collet and tighten per the tool manufacturer specification before operation. Always wear appropriate eye protection and follow applicable ANSI B11 and OSHA abrasive wheel safety standards during use.