Tru-maxx 66253255601 Surface Grinding Wheel 80 Grit

Product Description

The TRU-MAXX 66253255601 is a Type 1 surface grinding wheel designed for precision flat-surface stock removal on ferrous and non-ferrous metals. Built with aluminum oxide abrasive and a vitrified bond, this wheel delivers consistent cut rates and good form holding across a wide range of surface grinding applications. The wheel measures 7 inches in diameter, 0.5 inches thick, with a 1.25-inch arbor hole. At 80 grit and I hardness (medium grade), it is suited for moderate material removal where surface finish and wheel life are balanced. Rated at 3600 RPM maximum, it fits standard reciprocating and rotary surface grinders used in machine shops and toolrooms.

This wheel is a practical choice for toolroom surface grinders handling general-purpose ferrous stock removal, deburring of hardened steel, and finish-grinding of cast iron or steel workpieces. Its white aluminum oxide grain with a semi-friable structure allows the wheel to fracture and self-dress at a controlled rate, reducing loading and maintaining cut consistency over the wheel life. The non-porous, non-recessed Type 1 flat profile makes mounting straightforward on any standard surface grinder spindle accepting a 1.25-inch bore.

Key Features

• Aluminum oxide abrasive with semi-friable grain structure for controlled self-dressing
• Vitrified bond for rigid form holding and efficient coolant penetration
• 80 grit, I hardness, medium grade for balanced stock removal and wheel life
• Type 1 flat wheel with no recess for direct spindle mounting
• White wheel color aids visual inspection of wear and contamination
• Rated to 3600 RPM maximum operating speed

Compatibility

Designed as an OEM-style replacement or direct-fit grinding wheel for standard surface grinders accepting a Type 1, 7-inch diameter wheel with a 1.25-inch arbor bore.

Installation Notes

Surface grinding wheels must be installed by qualified personnel following ANSI B7.1 safety standards for the use, care, and protection of abrasive wheels. Always power down and lock out the grinder before mounting or removing a wheel. Inspect the wheel for cracks or chips using the ring test before installation, and never exceed the 3600 RPM maximum speed rating stamped on the wheel. Use proper flanges and a blotter on each side of the wheel to ensure even clamping pressure.