Norton 66243530221 Type 6 Grinding Wheel 4 in 60 Grit

Product Description

The NORTON 66243530221 is a Type 6 straight cup grinding wheel designed for precision tool and surface grinding applications. Built with aluminum oxide abrasive and a vitrified bond, this wheel delivers consistent stock removal on ferrous metals and tool steel. The wheel measures 4 inches in diameter with a 1-1/2 inch overall thickness and a 1/2 inch face width, running at a maximum rated speed of 5,730 RPM. At 60 grit with K hardness (medium grade), it is well suited for moderate material removal while maintaining reasonable surface finish. This wheel is used by machinists, tool grinders, and maintenance techs working with bench or pedestal grinding equipment.

This wheel is intended for dry grinding on tool and cutter grinders, bench grinders, and pedestal grinders accepting a 1-1/4 inch arbor hole. The 38A60-KVBE specification designates a friable white aluminum oxide grain structure, which fractures cleanly to expose fresh cutting edges during use. It is a practical choice for sharpening cutting tools, grinding HSS tooling, and light surface grinding tasks in machine shops and maintenance environments.

Key Features

• Aluminum oxide abrasive with vitrified bond for consistent, controlled grinding action
• Type 6 straight cup wheel geometry suited for face grinding on bench and pedestal grinders
• 60 grit, K hardness (medium) for balanced stock removal and surface finish
• Friable grain structure fractures to self-dress, reducing glazing during use
• Maximum rated speed of 5,730 RPM for safe operation on standard grinding equipment
• White wheel color indicates friable aluminum oxide grain, specification 38A60-KVBE

Compatibility

Designed for use on bench grinders, pedestal grinders, and tool and cutter grinders equipped with a 1-1/4 inch arbor. Accepts standard Type 6 straight cup wheel mounting configurations.

Installation Notes

Grinding wheel installation must be performed by qualified personnel following ANSI B7.1 safety standards. Always power down and lockout the grinder before mounting or removing a wheel. Inspect the wheel for cracks or chips before installation and perform a ring test on vitrified wheels prior to use. Never exceed the maximum rated RPM of 5,730 stamped on the wheel, and always use appropriate eye and face protection during operation.