Cratex 75331 Rubberized Mounted Point Fine 120 Grit

Product Description

The CRATEX 75331 is a rubberized abrasive mounted point designed for precision deburring, blending, and surface finishing on metal and other hard materials. Built around an aluminum oxide abrasive matrix in a fine grade formulation at 120 grit, this point delivers controlled material removal with a smooth finish. The B52 shape code designates its specific geometry: a maximum diameter of 3/8 inches and an overall thickness of 3/4 inches. It mounts on a 1/8-inch shank and is rated for up to 28,500 RPM, making it compatible with standard die grinders and rotary tools used by machinists, tool-and-die techs, and fabricators.

This mounted point is suited for close-tolerance finishing work in production and maintenance environments. Common applications include port smoothing, weld blending, cavity cleaning, and light deburring on steel, cast iron, aluminum, and similar materials. The rubberized bond provides some flexibility during contact, which helps conform to irregular contours and reduces the risk of gouging on finished surfaces. Trades including pipefitters, welders, and maintenance mechanics reach for this style of point when tight access requires a small-diameter rotary abrasive.

Key Features

• Aluminum oxide abrasive matrix - effective on ferrous and non-ferrous metals
• Fine grade, 120 grit - suited for finishing and light deburring rather than aggressive stock removal
• B52 shape code - 3/8-inch max diameter, 3/4-inch thickness for access in confined areas
• 1/8-inch shank - fits standard die grinders, Dremel-style rotary tools, and flex-shaft machines
• 28,500 RPM max rated speed - compatible with most high-speed rotary handpieces
• Rubberized bond - slight flexibility for contour work without aggressive gouging

Compatibility

Designed for use with rotary tools and die grinders accepting a 1/8-inch shank collet, operating at speeds up to 28,500 RPM.

Installation Notes

Installation is performed by inserting the 1/8-inch shank into the collet of a compatible rotary tool or die grinder and tightening securely before operation. Always verify the tool spindle speed does not exceed the 28,500 RPM rating marked on this point. Eye protection and appropriate PPE are required when operating any abrasive mounted point. Inspect the point for cracks or unusual wear before each use and discard if damage is found.