Grier Abrasives B42-N4-17283 Mounted Point Coarse B42

Product Description

The GRIER ABRASIVES B42-N4-17283 is a coarse-grade aluminum oxide mounted point designed for precision grinding, deburring, and surface blending on metal and other hard materials. The B42 point shape features a pointed profile well-suited for reaching tight areas, contoured surfaces, and internal cavities. At 0.75 inches head thickness and rated to 33,750 RPM, this mounted point delivers aggressive stock removal with a very hard bond for extended wheel life. It is commonly used with die grinders and rotary tools in fabrication, maintenance, and tool-and-die applications.

This mounted point is appropriate for both shop and field use in metalworking environments, including production grinding, weld blending, and mold work. The 0.125-inch shank diameter fits standard die grinder collets, and the 1.5-inch shank length provides adequate clearance for most mounting setups. The green aluminum oxide grain is well-suited for grinding hardened steels, cast iron, and similar ferrous alloys. Machinists, tool-and-die makers, fabricators, and maintenance technicians are the primary installers and users of this abrasive.

Key Features

• B42 pointed profile for access to tight contours and internal geometries
• Coarse grade aluminum oxide grain for aggressive stock removal
• Very hard bond construction for extended service life under sustained use
• 33,750 RPM maximum rated speed for compatibility with standard die grinders
• 0.125-inch shank diameter fits standard die grinder collets without adapters
• 1.5-inch shank length provides clearance in most mounted-point applications

Compatibility

Designed for use with die grinders and rotary tools accepting a 0.125-inch shank. Verify that the tool spindle speed does not exceed the 33,750 RPM maximum rating before use.

Installation Notes

Always power down and disconnect the die grinder from its air or electrical source before mounting or changing abrasive points. Confirm the spindle speed of the tool does not exceed the maximum RPM marked on the abrasive. Inspect the mounted point for cracks or damage before each use and discard any damaged point immediately. Wear appropriate eye protection and follow applicable ANSI B11 or OSHA abrasive safety standards during operation.