A studio product view of the DEWALT DWE4557 7-inch high-power angle grinder. The image displays the heavy-duty corded tool from a three-quarter perspective, highlighting the signature yellow motor housing, the 7-inch protective black guard, and the ergonomic rear trigger handle designed for professional industrial metalworking.
A side profile photograph of the DEWALT DWE4557 4.7 HP angle grinder. This view showcases the long, streamlined design of the tool, featuring the anti-vibration trigger handle, a side-mounted auxiliary handle for increased leverage, and the integrated Dust Ejection System air intake vents.
A close-up photograph of the DEWALT angle grinder's rear handle and trigger mechanism. The image highlights the soft-grip anti-vibe handle and the oversized trigger switch with a safety lock-on button, emphasizing user comfort and control during extended material removal tasks.
An alternative close-up view of the DEWALT DWE4557 trigger handle. The shot focuses on the ergonomic contouring of the yellow and black housing, illustrating the tool's specialized design for reducing vibration and hand fatigue in heavy-duty construction environments.
A detailed product view of the DEWALT 3-position side handle included with the DWE4557 kit. The handle features a black rubberized grip with the DEWALT logo and a yellow vibration-dampening ring at the base to improve operator safety and accuracy during grinding.
A technical cutaway view of the DEWALT 4.7 HP angle grinder. The internal components are exposed to show the high-performance motor, the large spiral bevel gears, and the advanced Dust Ejection System fan, illustrating the heavy-duty engineering that provides 8,500 RPM of power.
A reversed technical cutaway view of the DEWALT DWE4557. This detailed infographic highlights the internal electrical wiring, motor brushes, and cooling system, demonstrating the tool's industrial-grade durability and efficient AC/DC power management.
DEWALT® Product Guides - Grinder Basics promotional how to video
A studio product view of the DEWALT DWE4557 7-inch high-power angle grinder. The image displays the heavy-duty corded tool from a three-quarter perspective, highlighting the signature yellow motor housing, the 7-inch protective black guard, and the ergonomic rear trigger handle designed for professional industrial metalworking.
A side profile photograph of the DEWALT DWE4557 4.7 HP angle grinder. This view showcases the long, streamlined design of the tool, featuring the anti-vibration trigger handle, a side-mounted auxiliary handle for increased leverage, and the integrated Dust Ejection System air intake vents.
A close-up photograph of the DEWALT angle grinder's rear handle and trigger mechanism. The image highlights the soft-grip anti-vibe handle and the oversized trigger switch with a safety lock-on button, emphasizing user comfort and control during extended material removal tasks.
An alternative close-up view of the DEWALT DWE4557 trigger handle. The shot focuses on the ergonomic contouring of the yellow and black housing, illustrating the tool's specialized design for reducing vibration and hand fatigue in heavy-duty construction environments.
A detailed product view of the DEWALT 3-position side handle included with the DWE4557 kit. The handle features a black rubberized grip with the DEWALT logo and a yellow vibration-dampening ring at the base to improve operator safety and accuracy during grinding.
A technical cutaway view of the DEWALT 4.7 HP angle grinder. The internal components are exposed to show the high-performance motor, the large spiral bevel gears, and the advanced Dust Ejection System fan, illustrating the heavy-duty engineering that provides 8,500 RPM of power.
A reversed technical cutaway view of the DEWALT DWE4557. This detailed infographic highlights the internal electrical wiring, motor brushes, and cooling system, demonstrating the tool's industrial-grade durability and efficient AC/DC power management.
DEWALT® Product Guides - Grinder Basics promotional how to video
DEWALT

DeWalt Angle Grinder DWE4557 7 Inch Corded Power Tool (4.7 HP 15 Amp 8500 RPM 120V Spindle Steel Weld Concrete Masonry Surface Cutting Preparation)

In stock
SKU: DWE4557
$221.99 USD
$229.00 USD Sale $221.99 USD

Description

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DeWalt DWE4557 7-Inch 4.7 HP Heavy-Duty Angle Grinder

The DeWalt DWE4557 7-inch angle grinder provides aggressive stock removal and heavy-load speed maintenance via a 15.0 amp 4.7 HP motor delivering up to 8,500 RPM. Engineered with an integrated Dust Ejection System and automatic turn-off brushes, it prevents abrasive particulate ingress to maximize motor and brush longevity. Its low-profile gearcase, anti-vibration trigger handle, and 3-position side grip ensure controlled maneuvering and reduced operator fatigue across industrial metal fabrication and masonry prep.

Best Used For:

  • Heavy Weld Seam Grinding: Leveling thick bead welds and beveling structural plate joints rapidly in steel fabrication shops.
  • Structural Steel Cutting: Sectioning heavy-gauge steel beams, thick-walled pipes, and rebar on industrial construction sites.
  • Concrete and Masonry Surfacing: Stripping epoxy coatings, smoothing uneven concrete slabs, and tuck-pointing mortar joints with diamond cups.

Key Performance & Safety Features

  • Maximum Motor Power: High-output 4.7 HP motor with overload protection for aggressive material removal.
  • Dust Ejection System: Diverts harmful dust and debris particles away from the motor to increase longevity.
  • Anti-Vibe Trigger Handle: Ergonomically designed to dampen vibration and reduce user fatigue during long shifts.
  • 8,500 RPM Performance: Optimized speed for 7-inch grinding wheels to provide clean and efficient results.
  • Automatic Turn-Off Brushes: Shuts down the tool when maintenance is required to prevent internal motor damage.
  • 3-Position Side Handle: Offers multiple gripping points for better leverage and improved ergonomics.

What's Included

  • (1) DeWalt DWE4557 7-Inch High Power Angle Grinder
  • (1) 7-Inch Protective Guard
  • (1) 3-Position Anti-Vibration Side Handle

Technical Specifications

Manufacturer DeWalt
Model Number DWE4557
Motor Horsepower 4.7 HP
Current Rating 15.0 Amps
Maximum Speed 8,500 RPM
Wheel Diameter 7.0 Inches
Spindle Thread 5/8 in - 11 UNC
Operating Voltage 120V AC/DC
Switch Configuration Trigger with Lock-On Option
Tool Net Weight 11.6 lbs
Gearcase Profile Low-Profile Aluminum Alloy

Pro-Tip: Regularly check that the dust ejection intake vents remain unobstructed during masonry grinding to ensure uninterrupted cooling airflow to the motor windings.