3M 7100147339 Depressed Center Grinding Wheel 4.5 in 36 Grit

Product Description

The 3M 7100147339 is a Type 27 depressed center grinding wheel built for heavy-duty metal removal in industrial and fabrication environments. Measuring 4.5 inches in diameter and running a 36 grit, this wheel uses Precision-Shaped Grain technology to deliver a fast, consistent cut over an extended service life. It is designed for grinding, beveling, and weld removal on stainless steel, mild steel, and aerospace alloys. Licensed trade fabricators and metalworkers install this wheel on right-angle grinders for demanding stock removal tasks where wheel longevity and cut rate both matter.

This wheel is suited for both production and field fabrication settings where carbon steel, stainless steel, and similar ferrous and non-ferrous alloys require aggressive surface preparation or weld cleanup. The Type 27 depressed center profile provides clearance for flat and beveled work surfaces. It performs in robotic and pressure-assisted grinding applications where frequent wheel changes would create costly downtime. The 36 grit designation makes it appropriate for coarse stock removal rather than finishing passes.

Key Features

• Type 27 depressed center profile for clearance on flat and angled work surfaces
• 4.5 inch diameter fits standard right-angle grinders
• 36 grit coarse abrasive for heavy stock removal, beveling, and weld cleanup
• Precision-Shaped Grain construction extends wheel life and maintains consistent cut rate
• Compatible with robotic and pressure-assisted grinding applications
• For use with tools equipped with an approved guard per ANSI B7.1

Compatibility

Designed for use with right-angle grinders and tools fitted with accessories designed for depressed center grinding wheels. Always verify the tool's rated RPM meets or exceeds the wheel's maximum rated speed before mounting.

Installation Notes

Installation should be performed by a qualified operator following applicable ANSI B7.1 safety standards for abrasive wheel use. Ensure the grinder is fully powered down and disconnected before mounting or removing the wheel. Inspect the wheel for cracks or damage before each use and never exceed the maximum rated RPM marked on the wheel. Always operate with an approved guard in place.

Technical Specifications

• Wheel Diameter: 4.5 inches
• Grit: 36
• Wheel Type: Type 27 Depressed Center
• Application: Grinding, Beveling, Weld Removal
• Compatible Materials: Stainless Steel, Mild Steel, Carbon Steel, Aerospace Alloys
• Package Dimensions: 7.38 x 7.38 x 7.75 inches
• Weight: 0.4 pounds
• UPC: 076308445381

Standard Information

• Brand: 3M
• Manufacturer Part Number: 7100147339