Norton 66243529372 Type 6 Grinding Wheel 60 Grit

Product Description

The NORTON 66243529372 is a Type 6 straight-cup grinding wheel designed for precision tool grinding and surface grinding applications. Built with white aluminum oxide abrasive and a vitrified bond, it delivers consistent stock removal and sharp cutting action across a range of ferrous and non-ferrous tool materials. The wheel measures 3.5 inches in diameter with a 1.5-inch overall thickness and a 0.5-inch face width, rated to a maximum of 6,550 RPM. At 60 grit and K hardness, it falls in the medium grade range, suited for controlled material removal without excessive surface damage. Licensed grinding machine operators and tool-and-cutter technicians are the primary installers of this wheel.

This wheel is well matched for bench grinder and pedestal grinder setups used in tool room and maintenance shop environments. It handles resharpening of cutting tools, lathe tooling, drill bits, and similar shop tools where a consistent medium-grit cut is required. The 0.5-inch hole size fits standard arbors on bench-style grinding machines. Its friable aluminum oxide grain fractures cleanly during use, continuously exposing fresh cutting edges and reducing glazing between dressings. Both commercial machine shops and industrial maintenance departments commonly stock this wheel type for general tool grinding duty.

Key Features

• White aluminum oxide abrasive for sharp, cool-cutting action on tool steels
• Vitrified bond provides rigidity and consistent form retention during grinding
• 60 grit, K hardness (medium grade) for controlled stock removal
• 3.5-inch diameter with 0.5-inch face width for precision cup-style grinding
• Friable grain structure reduces glazing and extends dress intervals
• Non-porous construction with maximum operating speed of 6,550 RPM

Compatibility

Designed as a direct-fit replacement Type 6 straight-cup grinding wheel for bench grinders and pedestal grinders equipped with a 0.5-inch arbor bore. Specification code 38A60-KVBE. Confirm machine spindle speed does not exceed the 6,550 RPM maximum rating before installation.

Installation Notes

Installation should be performed by a qualified operator following ANSI B7.1 safety standards for the use, care, and protection of abrasive wheels. Always power down and lock out the grinding machine before mounting or removing a wheel. Inspect the wheel for cracks or chips prior to mounting, perform a ring test, and run the wheel under guard at operating speed for at least one minute before applying workpiece contact. Never exceed the rated maximum RPM stamped on the wheel.