Makita’s Heavy-Duty Drills: Comparing the XGT GPH01Z and GPH03Z

When it comes to heavy-duty drilling, power, portability, and adaptability are key. Makita offers two similar, high-performance options in its 40V Max XGT line: the GPH01Z and GPH03Z 1/2-inch Hammer Driver Drills. Both drills deliver impressive speed and torque, but subtle differences may create one a better fit for your needs.

Makita GPH01Z vs. GPH03Z: An Overview

Both the Makita GPH01Z and GPH03Z are designed for demanding drilling applications, including concrete. They both share a price point of around $250 (tool only), and weigh just under six pounds without a battery. Adding a battery will increase the weight by another two to three pounds and add approximately $200 to the overall cost.

Key Differences: GPH01Z vs. GPH03Z

While incredibly similar, the GPH01Z and GPH03Z have distinct characteristics:

• Speed and Impacts Per Minute (BPM): The GPH01Z is slightly faster, with a maximum BPM of 39,000, compared to the GPH03Z’s 36,000 BPM.
• Torque: The GPH03Z boasts higher maximum torque at 1,590 in-lbs, while the GPH01Z delivers 1,250 in-lbs.
• Speed Settings: The GPH03Z introduces a third speed setting, offering potentially more precise control between low and high speeds.
• Availability: The GPH01Z is more widely available, commonly found in stores like Home Depot Home Depot, while the newer GPH03Z has limited availability as of February 2026.

Performance and Power

Both drills provide ample power for heavy-duty tasks. A minimum torque of 450 in-lbs is generally recommended for drilling into concrete, and both the GPH01Z and GPH03Z significantly exceed this requirement. Both drills are equipped with an “electronic digital clutch” for accurate torque range settings.

Which Drill Should You Choose?

The choice between the GPH01Z and GPH03Z largely depends on availability and specific needs. If you prioritize maximum speed, the GPH01Z is a solid choice. If you value higher torque and the added precision of a third speed setting, and can find it in stock, the GPH03Z is the better option. Given the similarities, selecting whichever model is available at a quality price is a practical approach.

Methodology

This comparison was based on performance specifications – speed, impacts per minute, and torque – as well as user and professional reviews. The analysis focused on these two models due to their prominence within Makita’s heavy-duty drill lineup, acknowledging the GPH03Z’s potential to replace the GPH01Z as it becomes more readily available.