Cratex 40338 Surface Grinding Wheel 80 Grit Aluminum Oxide

Product Description

The CRATEX 40338 is a Type 1 surface grinding wheel engineered for precision material removal on ferrous and non-ferrous workpieces. It measures 1 inch in diameter and 1/4 inch thick, with a 1/8 inch center hole for mounting on compatible spindles and rotary tools. The wheel is made from aluminum oxide abrasive at an 80-grit medium grade, offering a balance of stock removal rate and surface finish quality. Rated to 36,290 RPM, it is built for high-speed operation in tool room, bench, and handheld grinding applications. Installation and use are appropriate for machinists, fabricators, and skilled trade professionals.

This wheel is suited for surface grinding tasks in both shop and field environments. Its compact 1-inch diameter makes it well-matched for deburring, sharpening, and light material removal on small components, edges, and detail areas where a larger wheel cannot reach. The medium-grade aluminum oxide construction handles general-purpose ferrous metal grinding and is commonly used on steel, iron, and similar materials. No recess is present on either face, keeping the contact surface flat and consistent throughout the wheel's service life.

Key Features

• Type 1 flat wheel profile with no recess for full-face contact
• 80-grit aluminum oxide abrasive rated as medium hardness grade
• Maximum operating speed of 36,290 RPM
• Compact 1 inch diameter suits rotary tools and small spindles
• 1/4 inch thickness provides rigidity during surface and edge grinding
• 1/8 inch center hole for standard small-spindle mounting

Compatibility

Designed as a replacement or consumable Type 1 surface grinding wheel for rotary tools and bench grinders accepting a 1/8 inch arbor hole and wheels up to 1 inch in diameter with a maximum speed rating at or above 36,290 RPM.

Installation Notes

This wheel should be installed and operated by qualified machinists or trade professionals familiar with abrasive wheel safety practices. Always disconnect or de-energize the tool before mounting or removing the wheel. Verify that the host tool spindle speed does not exceed the wheel maximum RPM rating before operation. Follow ANSI B7.1 and applicable workplace safety standards for abrasive wheel inspection, mounting, and guarding.