Tru-maxx 620190 Type 27 Grinding Wheel 9 in Aluminum Oxide

Product Description

The TRU-MAXX 620190 is a Type 27 depressed center grinding wheel designed for use with angle grinders in metalworking and fabrication applications. Built with an aluminum oxide abrasive and a resinoid bond, this wheel measures 9 inches in diameter and 1/4 inch thick. It is rated to a maximum of 6,600 RPM and mounts via a standard 5/8-11 threaded hub. Licensed tradespeople and fabricators use this wheel for grinding welds, cleaning weld beads, removing burrs, and general surface stock removal on ferrous metals. The resinoid bond provides consistent material removal and durability under sustained load.

This wheel is suited for light industrial, commercial, and job-site metal grinding tasks. The Type 27 depressed-center profile keeps the mounting hardware reclear of the work surface, allowing flatter grinding angles. Compatible with 9-inch angle grinders equipped with a 5/8-11 threaded spindle. Typical users include ironworkers, pipefitters, welders, millwrights, and maintenance mechanics requiring a reliable, general-purpose grinding wheel for steel and other ferrous materials.

Key Features

• Type 27 depressed-center profile for flat grinding access on metal surfaces
• Aluminum oxide abrasive provides durable stock removal on ferrous metals
• Resinoid bond for consistent performance under continuous load
• 6,600 RPM maximum rating for safe use on compatible 9-inch angle grinders
• 5/8-11 threaded hub fits standard angle grinder spindles
• 1/4-inch wheel thickness suited for general-purpose grinding and weld cleanup

Compatibility

Designed for use with 9-inch angle grinders equipped with a 5/8-11 threaded spindle and capable of operating at or below 6,600 RPM.

Installation Notes

Mounting and wheel changes should be performed by qualified personnel with the grinder powered off and unplugged. Inspect the wheel for cracks or chips before installation and never exceed the 6,600 RPM maximum speed rating. Ensure the grinder guard is in place before operation. Follow ANSI B7.1 safety requirements for the use, care, and protection of abrasive wheels.