Tru-maxx 66253255426 Surface Grinding Wheel 6in 80 Grit

Product Description

The TRU-MAXX 66253255426 is a Type 1 straight surface grinding wheel engineered for precision stock removal and surface finishing on ferrous metals. Built with aluminum oxide abrasive and a vitrified bond, this wheel delivers consistent cut rate and form retention across a wide range of surface grinding applications. At 6 inches in diameter, 1/4 inch thick, with a 1-1/4 inch arbor hole, it mounts directly to standard surface grinder spindles. The 80 grit, K hardness (medium) rating positions it for general-purpose finish grinding where a balance of material removal and surface quality is required. Rated at 5,410 RPM maximum, it suits most benchtop and reciprocating-table surface grinders in shop and tool-room environments.

This wheel is suited for surface grinding operations on hardened steel, tool steel, and similar ferrous workpieces in machine shops, tool rooms, and maintenance facilities. The medium grade and semi-friable aluminum oxide grain structure allow the wheel to self-dress at a controlled rate, maintaining sharpness during extended passes. It is a practical choice for grinding flat surfaces, sharpening tooling, and light die work where close tolerances and consistent finishes are the priority.

Key Features

• Aluminum oxide abrasive for reliable performance on ferrous metals and hardened steels
• Vitrified bond provides rigidity, porosity control, and good form holding
• 80 grit medium grade for a balance of stock removal rate and surface finish quality
• K hardness code with semi-friable grain structure supports controlled self-dressing
• Type 1 straight wheel profile with no recess and non-tapered face
• 5,410 RPM maximum operating speed rated for standard surface grinder use

Compatibility

Designed as a standard Type 1 straight surface grinding wheel for use on surface grinders accepting a 6 inch diameter wheel with a 1-1/4 inch arbor hole and a maximum spindle speed of 5,410 RPM or lower.

Installation Notes

Installation should be performed by a qualified machinist or grinding equipment operator in accordance with ANSI B11.9 grinding safety standards. Always inspect the wheel for cracks or chips before mounting and perform a ring test by tapping the wheel lightly. Power down and lock out the grinder before mounting or changing wheels. Never exceed the marked maximum RPM rating of the wheel.