Tru-maxx 66243496722 Type 5 Surface Grinding Wheel 46 Grit

Product Description

The TRU-MAXX 66243496722 is a Type 5 recessed surface grinding wheel designed for precision stock removal on surface grinders and compatible bench applications. Built with aluminum oxide abrasive and a vitrified bond, this wheel delivers consistent, controlled cutting action on ferrous metals and general-purpose materials. At 46 grit with an H hardness code, it falls in the coarse-grade range, making it suited for aggressive material removal where finish tolerances are secondary to throughput. The wheel is rated to 3600 RPM and carries a semi-friable grain structure that supports continuous self-sharpening during the cut. Machinists and surface grinding technicians are the primary installers.

This wheel fits standard surface grinders accepting a 7-inch diameter, 1-inch thick wheel with a 1-1/4-inch arbor hole. The Type 5 profile features a single-side recess with a 3-inch recess diameter, which reduces wheel-to-workpiece contact area and helps manage heat buildup during extended grinding passes. It is appropriate for job shop and production environments handling tool steel, mild steel, cast iron, and similar ferrous stock. The white aluminum oxide composition with vitrified bond makes it a common choice for tool rooms requiring consistent cut rate and predictable wheel wear.

Key Features

• Type 5 single-side recessed profile with 3-inch recess diameter for reduced contact area and improved coolant access
• Aluminum oxide abrasive with vitrified bond for rigid, consistent cutting action
• 46 grit, H hardness coarse-grade wheel suited for aggressive material removal on ferrous metals
• Semi-friable grain structure promotes self-sharpening and extends usable wheel life
• Rated to 3600 RPM maximum operating speed
• White wheel color indicates aluminum oxide composition standard to general-purpose tool room use

Compatibility

Designed as an OEM-style replacement or standard-stock grinding wheel for surface grinders accepting a 7-inch diameter, 1-1/4-inch arbor hole, 1-inch thick Type 5 wheel at up to 3600 RPM.

Installation Notes

Wheel mounting and dressing should be performed by a qualified machinist or grinding technician following the machine manufacturer's guard and flange specifications. Always power down and lock out the grinder before changing wheels. Inspect the wheel for cracks or chips using the ring test before mounting — do not use a damaged wheel. Do not exceed the 3600 RPM maximum speed rating marked on the wheel.