Makita XAG04Z 18V LXT® Lithium-Ion vs DEWALT FLEXVOLT ADVANTAGE 20V MAX* Angle

Design and build quality

Both units are designed as cordless angle grinders intended for professional jobsite use. Product A is listed under the DEWALT brand and features a construction compatible with the 20V MAX and FLEXVOLT battery systems. Product B is listed under the Makita brand and utilizes a BL Brushless Motor design. While specific physical dimensions and weight are not provided in the data, both tools incorporate electronic controls to manage operation. Product A includes a trigger switch cycle requirement for restarts, indicating a focus on controlled operation. Product B emphasizes electronic control to match torque and RPM to application demands. Build quality assessments rely on the described electronic protections and motor types rather than physical measurements.

Motor technology

The motor systems differ significantly between the two units. Product B explicitly features a BL Brushless Motor. This technology eliminates carbon brushes, enabling the motor to run cooler and more efficiently for a longer life. The electronically-controlled motor in Product B matches torque and RPM to changing demands. Product A does not explicitly state the motor type in the provided data but focuses on power output increases when paired with specific batteries. The absence of brushless specification for Product A suggests a standard motor configuration, whereas Product B leverages brushless efficiency for performance maintenance over time.

Performance

Performance metrics highlight distinct advantages for each tool. Product A achieves a significant power increase, getting up to 54% more power when paired with FLEXVOLT batteries. This suggests high-torque capability for demanding grinding tasks. Product B focuses on automatic adjustments, utilizing Automatic Speed Change technology to adjust speed and torque during operation for optimum performance. While Product A offers a raw power ceiling increase, Product B provides dynamic performance adaptation. Users requiring maximum peak power may lean towards Product A, while those needing consistent adaptive performance might prefer Product B.

Safety systems

Safety technology is a major differentiator in this comparison. Product A includes a robust suite of safety features. The Kickback Brake engages with maximum force to quickly stop the wheel and shut off the grinder when a bind-up occurs. Additionally, the E-CLUTCH shuts down the motor in under a tenth of a second when a pinch or stall is detected. E-Switch Protection requires the trigger switch to be cycled to restart after unexpected shutdowns. Product B features Active Feedback-sensing Technology (AFT), which turns the motor off if rotation of the wheel is suddenly forced to stop. Product A offers three distinct safety mechanisms compared to the single stated mechanism in Product B.

Battery life and efficiency

Efficiency and runtime claims vary between the models. Product B states that its efficient BL Brushless motor is electronically controlled to optimize battery energy use for up to 50% longer run time per charge. This indicates a focus on endurance and energy conservation. Product A does not provide specific runtime claims in the provided data but emphasizes compatibility with all DEWALT 20V MAX and FLEXVOLT Batteries. The lack of specific runtime data for Product A makes direct comparison difficult, but Product B's explicit claim suggests an advantage in operational duration per charge cycle.

Software and ecosystem

Connectivity and ecosystem integration favor Product A. It is Tool Connect Chip Ready, with a chip pocket that accepts the Tool Connect Chip DCE042. This connects with the Tool Connect Site Manager app for easy asset management on the jobsite. The chip is sold separately. Product B does not list any connectivity features or app integration in the provided data. For users managing multiple tools across a jobsite, Product A offers digital tracking capabilities that Product B lacks. This feature supports inventory control and theft prevention through digital means.

Price and value

Price positioning shows a clear difference. Product A is listed at $144.50, while Product B is listed at $128.99. Product B offers a lower entry price by approximately $15.51. Value assessment depends on the prioritization of features. Product A justifies its higher cost through expanded safety features and connectivity options. Product B provides value through motor efficiency and lower upfront cost. Ratings for both products are listed as N/A with N/A reviews, so user feedback cannot influence the value assessment. Buyers must weigh the cost difference against the specific feature sets offered.

Which one should you buy?

The choice depends on specific jobsite requirements. If safety protocols and asset tracking are priorities, Product A is the stronger candidate due to its Kickback Brake, E-CLUTCH, and Tool Connect readiness. The 54% power increase with FLEXVOLT batteries also supports heavy-duty applications. If budget and motor longevity are primary concerns, Product B is the preferable option. Its BL Brushless Motor and claimed 50% longer run time offer efficiency benefits at a lower price point. Both tools serve the angle grinder category but target slightly different operational preferences regarding safety tech versus motor efficiency.