
Bosch GXL18V-501B25 2-in
Score: 70/100
Flex FXM601-2B
Score: 72/100Rankings

The Flex 24V Brushless 6-Tool Combo Kit delivers exceptional torque and power, ideal for heavy-duty masonry and fastening tasks. Its primary drawbacks are the heavy kit weight and lack of consumer feedback or widespread availability. It is best suited for users already invested in the Flex 24V ecosystem who prioritize power over portability.

The Bosch GXL18V-501B25 is a versatile 5-tool combo kit featuring a unique 2-in-1 impact driver/wrench and compact, lightweight tools. Its main trade-off is the compromise of the multi-function impact driver versus dedicated tools. It is best suited for DIY homeowners and small contractors needing portability and battery interchangeability.
| Attribute | ![]() | ![]() |
|---|---|---|
18 V | 24 Vbest | |
4 Ahbest | 2.5 Ah | |
5 | 6best | |
2best | 2best | |
| ↓ lower better | — | 9.77 lbsbest |
— | 1,400 in-lbsbest | |
0.5 inchesbest | 0.5 inchesbest |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | ![]() | ![]() |
|---|---|---|
Kit Configuration(1) | ||
Total Tool Count | 5 | 6 |
Build & Support(1) | ||
Warranty Coverage | 5 years | Lifetime |
Battery & Power(2) | ||
Battery Voltage (V) | 18 V | 24 V |
Battery Capacity (Ah) | 4.0 Ah | 2.5 Ah |
Usability & Portability(1) | ||
Total Kit Weight (lbs) | null lbs | 9.77 lbs |
Drill/Driver Performance(1) | ||
Drill Torque (in-lbs) | null in-lbs | 1400 in-lbs |

Products in the top-left offer the best value (high score, low price).

Professional review content is limited, with only one YouTube video review available for a closely related 4-tool variant. The reviewer notes the tools are compact and praises the convenience of the two-in-one impact driver/wrench, though they acknowledge it is not the best option compared to dedicated single-function tools.
User feedback is minimal in the provided data, with no specific praise or complaints documented. General product descriptions emphasize pro-level performance and versatility for DIY homeowners and small contractors. The kit is marketed as a solution for upgrading cordless setups, covering multiple tasks with a single battery platform. One distributor listing indicates the kit was out of stock, suggesting reasonable demand.




Professional reviewers highlight the Flex 24V kit's superior raw power and torque specifications compared to traditional 18V/20V systems, particularly praising the Turbo mode and brushless efficiency. However, there is a notable absence of in-depth independent testing from major pro tool review outlets.
There is no direct user feedback, praise, or complaint data available in the research results. The absence of everyday consumer reviews indicates that the product has limited market penetration or has been discontinued before generating significant user-generated content.