Norton 66252842019 Type 27 Grinding Wheel 4x1/4x5/8

Product Description

The NORTON 66252842019 is a Type 27 depressed center grinding wheel engineered for metal grinding applications. Built with Gemini Aluminum Oxide abrasive, this wheel delivers consistent stock removal on ferrous metals and structural steel. The depressed center design keeps the wheel face at the correct angle for surface work on angle grinders, improving operator control and reducing fatigue during extended use. At 4 inches in diameter with a 1/4-inch thickness and a 5/8-inch arbor bore, it fits standard 4-inch angle grinders common in fabrication, maintenance, and construction trades.

This wheel is suited for professional metalworking tasks including weld blending, surface preparation, and deburring on mild steel, structural steel, and similar ferrous materials. It is a standard single-unit item sold in cases of 25, making it practical for shop stocking or job-site supply. Tradespeople working in fabrication shops, industrial maintenance, pipefitting, and general construction will find this wheel a reliable consumable for daily grinder use.

Key Features

• Gemini Aluminum Oxide abrasive for consistent cut rate on ferrous metals
• Type 27 depressed center profile for surface and edge grinding
• 4-inch diameter with 1/4-inch grinding face thickness
• 5/8-inch arbor bore fits standard 4-inch angle grinders
• Rated at 15,280 RPM maximum operating speed
• Case quantity of 25 wheels for efficient shop or site stocking

Compatibility

Designed for use on 4-inch angle grinders with a 5/8-inch spindle. Suitable for grinding mild steel, structural steel, and other ferrous metals. Confirm grinder RPM rating meets or exceeds the wheel maximum RPM before use.

Installation Notes

Installation should be performed by a qualified operator following ANSI B7.1 safety standards for abrasive wheel mounting. Always power down and unplug or de-energize the grinder before changing wheels. Inspect the wheel for cracks or chips before mounting and perform a ring test when applicable. Use the correct flange and guard for Type 27 wheels and never exceed the wheel maximum RPM rating of 15,280.

Technical Specifications

• Wheel Type: Type 27 Depressed Center
• Abrasive Material: Gemini Aluminum Oxide
• Application: Metal Grinding
• Diameter: 4 inches
• Thickness: 1/4 inch
• Arbor Bore: 5/8 inch
• Maximum RPM: 15,280
• Unit of Measure: Each
• Case Quantity: 25

Standard Information

• Brand: NORTON
• Manufacturer Part Number: 66252842019