The DEWALT DWE4559N angle grinder offers robust performance for professional users and serious DIYers tackling demanding grinding tasks. Featuring a powerful 4.7 horsepower motor and a high rotational speed of 6,500 RPM, this corded electric tool is designed to deliver efficient material removal with 9-inch wheels. It integrates a dust ejection system to extend motor life and incorporates ergonomics to reduce user fatigue. This review dives into the performance, specifications, pros and cons, and comparisons to help buyers make informed decisions.
Concise Performance Summary with Ratings and Price Tier
Rated 4.2 stars out of 5 by users, the DEWALT DWE4559N sits confidently in the mid-to-high price segment of heavy-duty angle grinders. Its 4.7 HP motor, dust ejection system, and ergonomic features provide excellent value for contractors needing reliable power and longevity. While it’s not the cheapest option available, the tool’s durability and performance justify the typical investment level in the professional power tool category.

Key Technical Details Defining the Grinder’s Capability
| Specification | Details |
|---|---|
| Motor Power | 4.7 Horsepower (max motor HP) |
| Maximum Rotational Speed | 6,500 RPM |
| Wheel Diameter | 9 inches |
| Power Source | 120 Volts, Corded Electric |
| Weight | Approx. 12.1 pounds (engineering specs vs packaging weight) |
| Dimensions | 24.21 x 4.92 x 9.84 inches |
| Special Features | Dust ejection system, anti-vibration handle, automatic brush shutoff |
Analyzing User Reviews and Sentiment Trends for Practical Insights
Although direct customer quotes are not available for this review, the star rating and purchase rank provide useful indicators. With a 4.2-star average from 50 ratings and consistent buyer interest (currently ranked #406 in power angle grinders), user satisfaction appears generally positive. Common user feedback from other similar DEWALT grinders suggests strong durability and power, with occasional remarks on weight and noise levels inherent to high-wattage grinders. Overall, buyers value the tool’s power-to-weight balance and maintenance-friendly features like brush windows.
Comparing the DEWALT DWE4559N to Similar Angle Grinders in Its Class
| Model | Power (HP) | Max RPM | Wheel Size | Weight (lbs) | Special Feature |
|---|---|---|---|---|---|
| DEWALT DWE4559N | 4.7 | 6,500 | 9″ | 12.1 | Dust Ejection System, Anti-Vibe Handle |
| Makita 9557PBX1 | 1.5 (est.) | 11,000 | 4.5″ | 5.8 | Soft Start, Star Guard |
| Metabo WEV15-125 | 1.5 (est.) | 11,500 | 5″ | 6.8 | Vibration Reduction, Quick Disc Change |
The DEWALT DWE4559N stands apart with its significantly larger wheel size and horsepower, ideal for heavy-duty applications. Competitors excel in lighter, smaller disc grinders suited for detail work, but the DEWALT’s dust ejection and vibration features cater to prolonged, rigorous use.
Ideal Candidates for This Angle Grinder and Those Who Should Look Elsewhere
- Professionals and contractors needing heavy-duty grinding with 9-inch wheels
- Users valuing motor longevity enhanced by dust ejection systems
- Operators requiring ergonomic features to reduce vibration fatigue during extended use
- Those comfortable with a corded, relatively heavier tool for powerful performance
- Avoid if lightweight, compact grinders or cordless models are preferred
- Skip if budget constraints limit investment in mid-tier professional tools
Assessing Price Point and Value Relative to Market
The DEWALT DWE4559N was introduced at an MSRP (estimated) fitting mid-tier professional angle grinders. Current sales often offer the grinder below MSRP, making it an attractive buy under the price threshold typical for large-wheel grinders with advanced features. Considering the tool’s 3-year limited warranty and DEWALT’s brand reliability, the price-to-performance ratio remains highly favorable for those needing power and brush longevity.
Frequently Asked Questions About the DEWALT DWE4559N
- Q: Does this grinder come with a carrying case?
A: The model usually ships with the tool only; no carrying case is included. - Q: Can the guard be adjusted without tools?
A: Yes, the grinder features a quick-change guard for easy spark redirection. - Q: How does the dust ejection system work?
A: It expels damaging dust particles from the motor air intake to enhance brush and motor life. - Q: Is this tool suitable for cutting or only grinding?
A: While primarily used for grinding, the 9-inch wheel can accommodate both grinding and cutting tasks with proper discs. - Q: What kind of maintenance does it require?
A: Periodic brush replacement is needed, assisted by a brush window for easy monitoring and an automatic brush shut-off feature that protects the motor.
Closing Assessment and Recommendations
The DEWALT DWE4559N angle grinder delivers a powerful 4.7 HP motor and 6,500 RPM speed tailored for demanding grinding applications. Its dust ejection technology and anti-vibration handle increase durability and user comfort, enhancing productivity on the job. The tool’s weight and size are balanced for heavy use, with thoughtful features such as a quick-change guard and automatic brush shutoff elevating its usability. For contractors or enthusiasts requiring a reliable, high-powered corded grinder, this model merits strong consideration within its price range.
