Cratex 75320 Rubberized Abrasive Mounted Point Shape B42

Product Description

The CRATEX 75320 is a rubberized abrasive mounted point designed for precision deburring, blending, and surface finishing on metal and other hard materials. Built to shape code B42, this point measures 1/2 inch in maximum diameter and 3/4 inch in thickness, with a 1/8 inch shank for direct chuck mounting on rotary tools, die grinders, and flexible shaft machines. The abrasive matrix is aluminum oxide at a medium grade with a grit rating of 70, delivering consistent stock removal without aggressive undercutting. Rated to 23,250 RPM, it handles high-speed applications while maintaining dimensional stability throughout the cut.

This mounted point is suited for metalworking and fabrication tasks where a flexible, self-dressing abrasive is preferred over rigid grinding wheels. Typical applications include cleaning weld seads, blending sharp edges, removing burrs from bored holes, and finishing internal contours. The rubberized bond allows the point to conform slightly to irregular surfaces, making it a practical choice for tool and die work, mold finishing, and precision part cleanup. It is installed and used by machinists, tool and die makers, and maintenance technicians working with rotary hand tools or bench-mounted flexible shaft units.

Key Features

• Shape code B42 rubberized point with 1/2 inch maximum diameter and 3/4 inch thickness
• Aluminum oxide abrasive at medium grade, 70 grit for balanced cutting and finish
• 1/8 inch shank fits standard rotary tool and die grinder chucks
• Rated to 23,250 RPM for use with high-speed rotary tools
• Rubberized bond conforms to irregular surfaces and self-dresses during use
• Pre-mounted and ready to install with no dressing or prep required

Compatibility

Designed as an OEM-style replacement or direct-use mounted abrasive point for rotary tools, die grinders, and flexible shaft machines accepting a 1/8 inch shank.

Installation Notes

Installation is performed by machinists or maintenance technicians using a standard rotary tool or die grinder with a 1/8 inch collet or chuck. Ensure the tool is powered off and unplugged before inserting or removing the shank. Do not exceed the rated maximum of 23,250 RPM. Inspect the point for cracks or damage before each use and discard if the abrasive matrix shows signs of separation from the shank.