Norton 66243530395 Type 11 Grinding Wheel 80 Grit

Product Description

The NORTON 66243530395 is a Type 11 flaring cup grinding wheel designed for tool grinding and precision surface work. Built with white aluminum oxide abrasive and a vitrified bond, this wheel delivers consistent stock removal with controlled wear. It measures 4 inches in diameter with a 1-1/2 inch overall thickness and a 1/4 inch face width. Rated at a maximum of 5,730 RPM, it carries an 80 grit, K hardness (medium grade) specification — designated 38A80-KVBE. Friable aluminum oxide construction allows the wheel to self-dress as it cuts, maintaining a sharp cutting face throughout use. Tool grinders, machinists, and maintenance technicians are the typical users of this wheel.

This wheel is suited for precision tool grinding applications including drill grinding, cutter grinding, and surface reconditioning on bench or pedestal grinders. The Type 11 flaring cup profile makes it appropriate for face grinding and contoured tool edges. The 80 grit rating positions this wheel for medium stock removal and light finishing passes rather than aggressive rough grinding. The 1-1/4 inch hole fits standard arbor sizes common on bench grinders used in machine shops, maintenance facilities, and tool rooms.

Key Features

• Type 11 flaring cup profile for face grinding and tool reconditioning
• White aluminum oxide abrasive — friable grain for self-dressing, sharp cutting action
• Vitrified bond for dimensional stability and consistent performance
• 80 grit, K hardness (medium) — designation 38A80-KVBE
• 5,730 RPM maximum rated speed
• Non-porous structure for clean, controlled material removal

Compatibility

Designed for use on bench and pedestal grinders accepting a 1-1/4 inch arbor hole, commonly used for tool grinding and cutter sharpening applications.

Installation Notes

Installation should be performed by a qualified machinist or maintenance technician. Always power down and lock out the grinder before mounting or removing a wheel. Inspect the wheel for cracks or chips before mounting — do not use a damaged wheel. After mounting, run the grinder at operating speed with a guard in place for at least one minute before applying the wheel to a workpiece, following ANSI B7.1 safety standards for abrasive wheel use.