Best FLEX Kit Impact Wrenches: 2 Spec-Based Picks
We compared 2 FLEX impact wrench kits using published specifications. See how drive size, torque, and battery capacity affect your choice for 24V tools.
By GaugeKit Editorial Team 5 min read
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Finding the best FLEX kit impact wrenches requires looking at published specifications. We compared 2 models to help you choose. The FLEX 24V Brushless Impact Driver Kit leads because its compact 5-inch width fits tight spaces. This kit includes a 2.5 Ah battery for quick charging. The list covers both drivers and wrenches from the brand. All picks are based strictly on the specs published on the listings. This guide helps you decide which tool matches your torque needs and existing battery platform.
Match Chuck Size to Your Task
You should choose your FLEX kit based on the drive size. The top pick is a 5-inch impact driver for compact work. The second option is a 1/2-inch wrench with 1,500 ft-lbs of torque for heavy fastening. Both use 24V brushless motors and include batteries. Select the drive that matches your socket requirements.
| # | Product | Best for | Price |
|---|---|---|---|
| 1 | FLEX 24V Brushless Impact Driver Kit Best overall | compact tasks and existing FLEX users | |
| 2 | FLEX 24V Brushless Impact Wrench Kit Best 1/2 inch | Heavy-duty high-torque fastening |
The best fit for you
- You need the most compact 24V impact driver – FLEX 24V Brushless Impact Driver Kit – It measures just 5.2 inches long with a 2.5 Ah battery.
- You require maximum torque for heavy-duty fastening – FLEX 24V Brushless Impact Wrench Kit – It delivers 1,500 Ft-Lbs of torque via a 1/2 inch chuck.
- You already own the FLEX 24V battery platform – FLEX 24V Brushless Impact Driver Kit – It uses the same 24V brushless system as your existing tools.
FLEX 24V Brushless Impact Driver Kit
Best for: compact tasks and existing FLEX users
- Configuration
- Kit
- Voltage
- 24V
- Motor Type
- Brushless
- Battery Capacity
- 2.5Ah
- Included Tools
- Impact Driver
- Power Source
- Cordless
This FLEX 24V brushless impact driver kit delivers 1,800 in-lbs of torque through a 1/4-inch hex drive. It includes two 2.5Ah batteries and a 160W fast charger. The sensor-free motor offers efficient power and heat management. You get compact dimensions of 5.2 inches in length, making it suitable for tight spaces. The kit provides cross-compatibility with the broader FLEX 24V ecosystem for flexible tool usage.
- 1,800 in-lbs of torque output
- Includes two 2.5Ah lithium batteries
- 160W fast charger for quick recharge
- Sensor-free brushless motor for efficiency
- 5-year limited warranty with registration
- Lower torque rating of 1,800 in-lbs compared to the 1,500 ft-lbs model on this list
- Smaller 2.5Ah battery capacity limits runtime to 160 screws per charge
- 1/4-inch hex drive size restricts bit compatibility compared to 1/2-inch models
- You need a compact tool for tight spaces
- You already own other FLEX 24V tools
- You prefer faster charging times
- You require high-torque 1/2-inch drive applications
- You need extended runtime without recharging
- You prefer a tool-only purchase without batteries
Verdict: FLEX 24V Impact Driver Kit fits users who prioritize compact size and fast charging over raw torque. It serves as a practical addition to existing FLEX 24V systems.
FLEX 24V Brushless Impact Wrench Kit
Best for: Heavy-duty high-torque fastening
- Configuration
- Kit
- Drive Size
- 1/2-Inch
- Breakaway Torque
- 1,500 foot-pounds
- Voltage
- 24V
- Motor Type
- Brushless
- Battery Capacity
- 6.0Ah
This FLEX kit includes a 24V brushless 1/2-inch impact wrench, a 6.0Ah Stacked Lithium battery, and a 280W charger. It delivers 1,500 foot-pounds of breakaway torque. The tool features vibration suppression and two auto-control modes for bolt tightening and removal. It is designed for users needing high torque in a cordless format. The Stacked Lithium technology offers extended runtime and faster charging compared to standard options.
- 1,500 foot-pounds maximum breakaway torque
- 24V Stacked Lithium 6.0Ah battery included
- Brushless motor for efficiency
- Two auto-control modes for precision
- Vibration suppression isolates user
- Heavier at 16.3 pounds compared to lighter drivers
- Larger dimensions with a 13.8-inch width
- Requires 24V battery ecosystem compatibility
- You need high torque for large bolts
- You already own FLEX 24V batteries
- You want auto-stop features for precision
- You prefer lightweight tools under 10 pounds
- You use a different voltage system
- You need a 1/4-inch hex drive
Verdict: FLEX 24V 1/2-Inch 1,500 Ft-Lbs Impact Wrench fits professionals who require substantial torque and already use the FLEX 24V platform. It is ideal for heavy-duty fastening tasks where power and control matter more than minimal weight.
Specifications side by side
| Spec | FLEX 24V Brushless Impact Driver Kit | FLEX 24V Brushless Impact Wrench Kit |
|---|---|---|
| Drive Size | – | 1/2-Inch |
| Breakaway Torque | – | 1,500 foot-pounds |
| Voltage | 24V | 24V |
| Motor Type | Brushless | Brushless |
| Configuration | Kit | Kit |
| Battery Capacity | 2.5Ah | 6.0Ah |
| Chuck Size | – | 1/2 Inch |
| Included Tools | Impact Driver | – |
| Power Source | Cordless | Cordless |
| Torque Level | – | High Torque |
| Dimensions | 5.2 × 5 × 10 inches | 18.9 × 13.8 × 5.51 inches |
| Weight | 10.6 pounds | 16.3 pounds |
| Size | w/(2) 2.5Ah Lithium Battery | 1,500 Ft-Lbs |
| Color | Grey/Black | Grey/Black |
| Model | FX1351-2A | FX1472-1H |
How to choose the right FLEX impact wrench kit
Check voltage compatibility
Both models use 24V power. This voltage suits users already invested in the FLEX ecosystem. If you own other FLEX 24V tools, these batteries share across your gear. You save money by not buying new cells. Check your current battery inventory first. The 24V system offers a balance of power and runtime. It is lighter than 18V systems in some cases. Ensure your existing chargers work with these specific packs. Compatibility simplifies your workflow significantly.
Select drive size
Drive size determines what bits you can use. The first pick is an impact driver. It uses hex shank bits for screws. This is ideal for compact tasks. The second option has a 1/2 inch chuck. It accepts sockets for bolts. Choose the driver for precision fastening. Choose the wrench for structural hardware. Do not mix up the bit types. Your task dictates the drive size needed. Match the tool to the hardware you install most often.
Evaluate motor type
Both kits feature brushless motors. This technology offers longer life and efficiency. Brushless motors generate less heat during use. They draw less power from the battery. You get more runtime per charge. The motor type is consistent across both picks. You do not need to choose between brushed and brushless here. Both options provide reliable performance. This spec ensures durability for frequent use. It is a standard feature in modern professional tools.
Review battery capacity
The top pick includes a 2.5 Ah battery. This capacity suits intermittent use. It keeps the tool lightweight and balanced. You lose runtime with higher capacity cells. Check the amp-hour rating on the pack. A 2.5 Ah cell is sufficient for most assembly jobs. You can buy larger batteries separately if needed. The kit provides the baseline power. Verify the runtime matches your typical project length.
Assess included tools
Kit contents vary by model. The first kit includes only the impact driver. You get a single tool in the box. The second kit is a wrench. It targets heavy-duty applications. Decide if you need one or two tools. The driver is for general fastening. The wrench is for high torque. Consider your existing inventory. Do not buy redundant tools. Check the box contents before purchasing.
Frequently asked questions
Which FLEX impact wrench kit is best for heavy-duty tasks?
The FLEX 24V Brushless Impact Wrench Kit is the best choice for heavy-duty fastening. It delivers 1,500 ft-lbs of torque through a 1/2-inch chuck. This high output suits professionals who need substantial power. The kit weighs 16.3 pounds, which is heavier than smaller drivers. It is ideal when power matters more than minimal weight.
What is the difference between the FLEX impact driver and wrench kits?
The main difference is the drive size and intended use. The impact driver kit features a compact 5-inch width for tight spaces. It is best for compact tasks. The impact wrench kit includes a 1/2-inch chuck for high-torque applications. It measures 18.9 inches long. You should choose the wrench for heavy fastening and the driver for precision work.
Do both FLEX kits use the same battery system?
Yes, both kits operate on the 24V platform. They share the same voltage compatibility with other FLEX tools. This allows you to use existing batteries across your gear. The impact driver kit includes a 2.5 Ah battery. This system benefits users already invested in the FLEX ecosystem by reducing the need for new power sources.
How large is the FLEX 24V impact driver kit?
The FLEX 24V Brushless Impact Driver Kit is designed for compactness. It measures 5.2 inches in length and 5 inches in width. The height is 10 inches. This small footprint fits easily into tight spaces. It serves as a practical addition for users who prioritize size over raw torque output in a portable package.
Is the FLEX impact wrench kit suitable for professionals?
Yes, the FLEX 24V Brushless Impact Wrench Kit fits professionals requiring substantial torque. It delivers 1,500 ft-lbs of torque via a 1/2-inch chuck. The brushless motor supports demanding industrial tasks. Although it weighs 16.3 pounds, the power output justifies the weight for heavy-duty fastening. It is ideal when control and strength are critical.
What motor type do these FLEX kits use?
Both the impact driver and impact wrench kits use brushless motors. Brushless technology generally offers better efficiency and longer runtime. These models are cordless and powered by 24V lithium batteries. The FX1351-2A driver and FX1472-1H wrench both feature this motor type. This design supports sustained performance for various fastening tasks.
What is included in the FLEX 24V impact driver kit?
The FLEX 24V Brushless Impact Driver Kit includes the impact driver tool itself. It comes with two 2.5 Ah lithium batteries. The package is designed for users needing a compact solution. The color scheme is grey and black. This configuration provides immediate power for compact tasks without requiring additional purchases.
Can I use these kits with existing FLEX batteries?
Yes, you can use these kits with existing FLEX 24V batteries. Both models are part of the 24V platform. If you own other FLEX tools, the batteries are compatible across your gear. This interoperability saves you from buying new power sources. It makes these kits a practical addition to your current tool collection.
See also
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