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Winner
The DEWALT 20V MAX* Angle Grinder Tool (DCG413B) is a battery-powered grinder designed for a variety of grinding tasks. Its brushless motor is a significant advantage, reducing maintenance as it does not require brush changes. This tool is equipped with a 4-1/2 inch disc size, which is versatile for various applications. At 3.75 pounds, it is relatively lightweight, making it easier to handle for extended periods.
The tool features a maximum speed of 3450 RPM, which is decent for most grinding tasks but may fall short for very heavy-duty jobs that require higher speeds. The handle design includes a two-stage trigger and an E-Switch Protection, adding layers of safety and preventing accidental start-ups. Additionally, the Kickback Brake and rapid stop brake feature enhance user safety by quickly stopping the wheel when necessary. However, this grinder is sold as a 'tool only,' meaning you will need to purchase the battery separately, which could add to the cost.
Its power rating of 20 watts seems low on paper compared to corded models, but this is somewhat mitigated by its portability and convenience. Despite these minor drawbacks, the DEWALT 20V MAX* is highly rated by users, with a 4.8 out of 5 stars from over 14,000 reviews, indicating strong customer satisfaction. This tool would benefit DIY enthusiasts and professionals looking for a reliable, portable grinder with robust safety features.
The DEWALT DWE402 Angle Grinder is a strong contender in the large-angle-grinders category, featuring an 11 Amp motor that delivers 11,000 RPM, making it highly powerful for heavy-duty tasks. The 4.5-inch disc size is versatile for various applications. This grinder stands out with its Dust Ejection System, which enhances durability by ejecting dust and debris, prolonging the tool's life and ensuring smoother operation.
The Quick-Change Wheel Release is another notable feature, allowing for easy and tool-free wheel changes, adding to the convenience of use. Ergonomically, the grinder is designed with a small gripping surface and a newly designed side handle, which makes it comfortable to handle during extended use. The large spiral bevel gear contributes to a longer transmission life, and the auto-off brushes prevent tool damage by shutting down the grinder when the brushes need replacing.
Safety is also well-addressed with the One-Touch Guard that allows for 360-degree rotation and a top-mounted spindle lock button that helps maximize the depth of cut without compromising durability. However, at 15.63 inches in length and weighing more than some other models, it may be slightly bulky for some users. Additionally, being a corded electric tool, it limits mobility compared to cordless models. Despite these minor drawbacks, the DEWALT DWE402 offers excellent power, durability, and user-friendly features, making it suitable for both professional tradespeople and serious DIY enthusiasts.
The Makita XAG04Z is a battery-powered, brushless cordless angle grinder with a disc size of 4-1/2” to 5”, making it versatile for different tasks. One of its major strengths is the Automatic Speed Change technology that adjusts speed and torque for optimized performance, which is beneficial for maintaining consistent grinding or cutting. Additionally, the Active Feedback-sensing Technology (AFT) enhances safety by turning off the motor if the wheel is suddenly forced to stop, preventing accidents. This feature is particularly valuable for users who prioritize safety in their tools.
The brushless motor is designed for efficiency, providing longer run time per charge, which is practical for extended use without frequent battery changes. The motor also runs cooler and has a longer lifespan compared to traditional motors with carbon brushes. With a maximum rotational speed of 8500 RPM, the grinder offers competitive performance for various applications. However, the fact that the product is sold as 'tool only' means that users need to purchase batteries separately, which adds to the initial cost. At 4.8 pounds, the grinder is relatively lightweight, which can reduce user fatigue during prolonged use.
The inclusion of a lock nut wrench and tool-less wheel guard suggests easy adjustments and maintenance. While the variable-speed feature allows for better control, some users may find the polymer material less durable compared to metal-bodied grinders. The Makita XAG04Z is well-suited for users looking for a portable, efficient, and safe angle grinder with excellent battery life and modern technology features, though the additional cost for batteries should be considered.