Dewalt DW4777 Double Row Diamond Cup Wheel 4.5 in

Product Description

The DEWALT DW4777 is a double row diamond cup wheel designed for grinding and surface preparation on masonry, concrete, and similar hard materials. The dual-row diamond segment configuration provides aggressive stock removal while maintaining a stable grinding surface. At 4.5 inches in diameter, it is sized for use with standard 4.5-inch angle grinders. The DW4777 weighs 1 pound, making it a manageable accessory for extended overhead or vertical grinding tasks. Licensed tradespeople in masonry, tile, and concrete work are the primary installers and users of this type of accessory.

The DW4777 is suited for residential and light commercial applications where concrete grinding, surface leveling, paint or coating removal, or mortar cleanup is required. Typical use cases include preparing concrete slabs before flooring installation, cleaning up masonry joints, and smoothing rough concrete surfaces. It is intended for dry or wet grinding depending on the grinder setup and job site requirements.

Key Features

• Double row diamond segment layout for aggressive material removal
• 4.5-inch diameter fits standard angle grinders with compatible arbors
• Lightweight at 1 pound for reduced operator fatigue
• Designed for grinding concrete, masonry, and similar hard surfaces
• Sold individually as a single unit per pack

Compatibility

Designed as an OEM-style replacement and standard accessory for 4.5-inch angle grinders accepting compatible diamond cup wheel arbor configurations.

Installation Notes

Installation and use of this cup wheel should be performed by qualified tradespeople familiar with angle grinder safety practices. Always power down and unplug or disconnect the grinder before mounting or removing the wheel. Verify that the grinder spindle speed rating meets or exceeds the wheel rating before operation. Eye protection, a face shield, and appropriate respiratory protection are required during grinding operations per standard job site safety protocols.

Technical Specifications

• Diameter: 4.5 inches
• Configuration: Double Row Diamond Segments
• Weight: 1 pound
• UPC: 028877074236
• Sold As: Each

Standard Information

• Brand: DEWALT
• Manufacturer Part Number: DW4777