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Bosch GWX13-50VSP 5 In. X-LOCK Variable-Speed vs Makita XAG04Z 18V LXT® Lithium-Ion Brushless

Updated July 2026 — Bosch GWX13-50VSP 5 In. X-LOCK Variable-Speed wins on speed and weight, Makita XAG04Z 18V LXT® Lithium-Ion Brushless wins on price and power.

The Bosch GWX13-50VSP offers superior power and speed at a lower price, while the Makita XAG04Z excels in portability and advanced features.

Why Bosch GWX13-50VSP 5 In. X-LOCK Variable-Speed is better

Price

Bosch is cheaper by $30.

Power

Bosch has a 13-amp motor.

Speed

Bosch reaches 11,500 rpm.

Why Makita XAG04Z 18V LXT® Lithium-Ion Brushless is better

Portability

Makita is cordless.

Battery Life

Makita has longer run time.

Safety Features

Makita includes automatic shut-off.

Overall score

Bosch GWX13-50VSP 5 In. X-LOCK Variable-Speed
75
Makita XAG04Z 18V LXT® Lithium-Ion Brushless
85

Specifications

SpecBosch GWX13-50VSP 5 In. X-LOCK Variable-SpeedMakita XAG04Z 18V LXT® Lithium-Ion Brushless
Motor TypeCordedBrushless
Max RPM11,500Variable
Speed ControlVariableAutomatic
Safety FeaturesNoneAFT
Tool ChangeTool-FreeManual

Dimension comparison

Bosch GWX13-50VSP 5 In. X-LOCK Variable-SpeedMakita XAG04Z 18V LXT® Lithium-Ion Brushless

Overview of the Bosch GWX13-50VSP

The Bosch GWX13-50VSP is a powerful angle grinder equipped with a 13-amp motor that delivers an impressive speed of up to 11,500 rpm. This grinder stands out for its innovative X-LOCK wheel change system, which allows for tool-free disc swaps and a rapid wheel change process that is up to five times faster than conventional methods. With a current price of $98.80, it is positioned as a robust option for both professionals and DIY enthusiasts.

The GWX13-50VSP is designed for versatility with a variable-speed setting, enabling users to adjust speeds from 2,800 to 11,500 rpm based on their specific application needs. Additional features such as epoxy-coated field windings enhance the motor's lifespan by preventing dust infiltration. This model also includes a Vibration Control auxiliary handle for increased user comfort, making it a well-rounded choice for various grinding tasks.

Overview of the Makita XAG04Z

The Makita XAG04Z is a cordless angle grinder that offers the convenience of mobility without sacrificing performance. Priced at $128.99, it features a BL Brushless motor that not only increases efficiency but also extends the tool's lifespan. The automatic speed change technology adjusts both speed and torque during operation, allowing for optimal performance across different materials.

As part of Makita's extensive 18V Lithium-Ion system, the XAG04Z can run on both standard and compact batteries, which are known for their quick charge times. This model excels in various applications, such as grinding and cutting through materials like tile and concrete. Its Active Feedback-sensing Technology is another highlight, automatically shutting off the motor if the wheel is forced to stop, adding an extra layer of safety for users.

Performance Comparison

In terms of performance, the Bosch GWX13-50VSP boasts a higher maximum speed of 11,500 rpm compared to the Makita XAG04Z, which operates under variable conditions without a specified maximum speed. The Bosch grinder's robust 13-amp motor provides consistent power for intensive tasks, making it particularly suitable for heavy-duty grinding. Conversely, the Makita's BL Brushless motor enhances runtime and efficiency, especially in battery-powered operations.

While the Bosch grinder excels in speed and power, the Makita offers unique features that cater to battery efficiency and user safety, such as the automatic speed adjustment and the safety shut-off. Thus, performance will depend significantly on whether you prioritize raw power or the convenience of cordless operation.

Design and Ergonomics

The design of the Bosch GWX13-50VSP focuses on functionality with its X-LOCK system, allowing for quick wheel changes. It also features a Vibration Control auxiliary handle, which enhances user comfort during extended use. The adjustable tool-free guard is another thoughtful addition, enabling users to set the guard to their preferred angle without needing additional tools.

The Makita XAG04Z, while lacking a tool-free guard adjustment, prioritizes mobility and ease of use with its cordless design. Its lightweight and compact build make it easier to maneuver, especially in tight spaces. However, the trade-off may come in the form of slightly less power compared to its corded counterpart. Overall, both grinders are well-designed, but your preference may lean towards Bosch for heavy-duty tasks or Makita for ease of handling.

Price Comparison

When it comes to pricing, the Bosch GWX13-50VSP is currently available for $98.80, making it about 23% cheaper than the Makita XAG04Z, which retails for $128.99. This price difference may be significant for budget-conscious buyers looking for a reliable angle grinder.

However, it is essential to consider the value offered by each tool. While the Bosch grinder provides high performance at a lower price, the Makita's advanced features may justify its higher cost for users who need a cordless option with longer run times. Ultimately, the decision may hinge on whether you prioritize upfront savings or value-added features.

Usability and Application

The Bosch GWX13-50VSP's high RPM and powerful motor make it ideal for rigorous applications like heavy grinding, metal work, and cutting through tough materials. Its variable-speed capability allows for customization based on the task at hand, enhancing its usability across diverse projects.

The Makita XAG04Z shines in scenarios where portability is essential. Its brushless motor and efficient battery management make it suitable for prolonged use without the hassle of cords. It's especially advantageous for jobs in remote locations or where access to power outlets is limited. Thus, while both grinders can handle a variety of tasks, the specific application may dictate which model is more suitable.

Customer Reception and Rankings

In terms of market reception, the Bosch GWX13-50VSP has a sales rank of 70,792, whereas the Makita XAG04Z performs significantly better with a sales rank of 12,529. This indicates that the Makita grinder is more popular among consumers, possibly due to its cordless convenience and advanced features.

Despite the Bosch's lower price point, it seems to attract a different segment of users who may prioritize affordability over brand reputation or advanced technology. Therefore, if popularity and user reviews are significant factors in your decision-making process, the Makita might be the safer choice.

Which should you buy?

Deciding between the Bosch GWX13-50VSP and the Makita XAG04Z ultimately depends on your specific needs and preferences. If you require a powerful, corded grinder that offers speed and efficient wheel changes at a lower price, the Bosch GWX13-50VSP would be an excellent choice. However, if you prioritize portability, advanced safety features, and longer battery life, the Makita XAG04Z is worth the higher investment. Each grinder has its strengths, making them suitable for different types of users and applications.