Grier Abrasives B52-J3-19355 Mounted Cone Abrasive Point

Product Description

The GRIER ABRASIVES B52-J3-19355 is a mounted rubberized abrasive point in a B52 cone shape, designed for precision grinding, deburring, and surface finishing on metal and other hard materials. It measures 3/8 inch maximum diameter and 2-1/4 inches in overall length, with a 1/8-inch shank diameter and a 1-1/2-inch shank length for secure chuck mounting. The abrasive material is aluminum oxide at a medium grade with an 80 grit rating and a hard hardness rating, making it well suited for controlled material removal on ferrous metals, castings, and weld areas. This point is rated for up to 45,370 RPM.

This mounted abrasive point is used in die grinders, rotary tools, and flex-shaft machines for internal grinding, port work, mold finishing, and general-purpose deburring tasks. It is commonly used in metal fabrication shops, tool and die operations, and maintenance environments where controlled conical grinding access is required. The cone geometry allows work in recessed areas, bores, and contoured surfaces that flat or cylindrical wheels cannot reach. This point is sold individually and is intended for single-use professional applications.

Key Features

• B52 cone shape provides access to recessed surfaces, bores, and contoured workpieces
• Aluminum oxide abrasive material offers consistent cut rate on ferrous metals and castings
• Medium grade, 80 grit rating balances material removal with surface finish quality
• Hard hardness rating maintains shape and cutting geometry under pressure
• Rated to 45,370 RPM for use with standard die grinders and rotary tools
• 1/8-inch shank diameter fits standard collets on most die grinders and rotary tools

Compatibility

Designed for use with die grinders, rotary tools, and flex-shaft machines equipped with a 1/8-inch collet or chuck. Suitable for grinding ferrous metals, castings, and weld material where a cone-profile abrasive point is required.

Installation Notes

Installation is performed by trade machinists, metal fabricators, or maintenance technicians using a standard die grinder collet wrench. Before mounting, ensure the tool is powered off and disconnected from its power source. Verify the tool spindle speed rating meets or exceeds the 45,370 RPM maximum rating of this point before operation. Inspect the mounted point for cracks or damage before each use and replace immediately if any defect is found.