Norton 66252842016 Type 27 Grinding Wheel 4x1/8x3/8

Product Description

The NORTON 66252842016 is a Type 27 depressed center grinding wheel designed for metal grinding applications. Built with Gemini Aluminum Oxide abrasive, it delivers consistent stock removal on ferrous metals including steel and iron. The wheel measures 4 inches in diameter, 1/8 inch in thickness, and has a 3/8 inch arbor bore. The Type 27 depressed center profile positions the grinding face at an angle to the workpiece, making it well suited for surface and edge grinding in tight or contoured areas. Licensed tradespeople and fabricators working in welding, fabrication, and metalworking shops are the primary installers and users of this wheel.

This grinding wheel is intended for use on small-to-mid-size angle grinders and bench-mounted grinding applications where a 4-inch Type 27 wheel is appropriate. It is suited for grinding, deburring, and blending on mild steel, stainless steel, and other metals. The Gemini Aluminum Oxide formulation is optimized for metal applications and is not intended for use on masonry, concrete, or non-ferrous materials. This SKU ships as a single wheel unit and is available in case quantities of 25.

Key Features

• Type 27 depressed center profile for surface and edge grinding access
• Gemini Aluminum Oxide abrasive grain engineered for metal stock removal
• 4 inch diameter with 1/8 inch thickness for controlled grinding depth
• 3/8 inch arbor bore fits compatible small angle grinder spindles
• Rated for metal grinding on ferrous materials including steel and iron
• Sold individually with a case quantity of 25 for shop stocking

Compatibility

Designed as an OEM-style replacement and standard consumable for angle grinders accepting a 4-inch Type 27 depressed center wheel with a 3/8 inch arbor bore. Intended for metal grinding applications only.

Installation Notes

Mounting and operation of grinding wheels should be performed by qualified tradespeople following ANSI B7.1 safety standards for the use, care, and protection of abrasive wheels. Before mounting, inspect the wheel for cracks or damage and confirm the grinder spindle speed does not exceed the maximum RPM marked on the wheel. Always install the proper flanges and guard before operation, and wear appropriate personal protective equipment including face shield and gloves. Never use this wheel on materials outside its rated application.

Technical Specifications

• Wheel Type: Type 27 Depressed Center
• Abrasive Material: Gemini Aluminum Oxide
• Application: Metal Grinding
• Diameter: 4 inches
• Thickness: 1/8 inch
• Arbor Bore: 3/8 inch
• Maximum RPM: 15280
• Unit of Measure: Each
• Case Quantity: 25

Standard Information

• Brand: NORTON
• Manufacturer Part Number: 66252842016