Norton 66252843177 Type 27 Grinding Wheel 4 in 24 Grit

Product Description

The NORTON 66252843177 is a Type 27 depressed center grinding wheel designed for use with angle grinders in heavy-duty material removal applications. The wheel measures 4 inches in diameter and 0.25 inches thick, with a 5/8 inch arbor hole for secure mounting. It is made from zirconia alumina abrasive bonded with a resinoid bond and carries a coarse 24 grit rating, making it well-suited for aggressive stock removal on metal, weld grinding, and surface conditioning. The hardness code S indicates a hard wheel that holds up under sustained pressure. Rated to 15,280 RPM maximum, it is built for the sustained loads common in fabrication and field welding work.

This wheel is intended for use on handheld angle grinders in both residential and commercial fabrication environments. Typical applications include weld bead removal, deburring, and surface preparation on ferrous metals. The Type 27 depressed center profile allows the wheel face to make full contact with flat workpiece surfaces, which is the standard configuration for flat grinding and blending passes. Licensed tradespeople in ironworking, pipefitting, welding, and general fabrication regularly use this wheel type for production and repair work.

Key Features

• Type 27 depressed center profile for flat surface grinding and weld removal
• Zirconia alumina abrasive for fast, cool cutting on ferrous metals
• 24 grit coarse grade for aggressive stock removal
• Resinoid bond with hardness code S for durability under sustained load
• 15,280 RPM maximum speed rating for angle grinder compatibility
• 5/8 inch arbor hole with arbor connector type for standard angle grinder spindles

Compatibility

Designed for use with angle grinders accepting a 5/8 inch arbor and Type 27 depressed center wheels. No specific brand or model compatibility data was provided by the manufacturer for this SKU.

Installation Notes

Installation should be performed by a qualified operator following applicable ANSI B7.1 safety standards for the use, care, and protection of abrasive wheels. Always power down and disconnect the angle grinder before mounting or removing the wheel. Verify that the grinder's rated RPM meets or exceeds the wheel's 15,280 RPM maximum before use, and never exceed the wheel's stated maximum speed. Inspect the wheel for cracks or damage before each use and use the appropriate guard for Type 27 wheels.