18V or 24V Drill Drivers? Compared by Specs
As an Amazon Associate we earn from qualifying purchases. Links on this page are affiliate links.
You are comparing an 18V vs 24V drill driver setup. Both tools are cordless and designed for portable use. The main difference lies in their voltage and intended application. One offers high-speed impact capability, while the other provides versatile drilling torque. You need to decide which power profile fits your specific tasks. This guide breaks down the specifications to help you choose the right tool for your workshop or job site needs.
Key differences
| Aspect | Milwaukee 18V 1/4-Inch Hex Impact Driver | Greenworks 24V Brushless 1/2-Inch Drill Driver |
|---|---|---|
| Voltage | 18V | 24V |
| Chuck Size | 1/4 in. hex | 1/2 in. |
| Motor Type | not listed | Brushless |
| Maximum Torque | 2,000 in-lbs | 530 in-lbs |
| Speed Settings | 4 mode drive control | 2-speed, 21+1 clutch |
| Tool Weight | 2.2 lbs | 2.43 lbs |
Which one should you choose?
Choose Milwaukee 18V 1/4-Inch Hex Impact Driver if
- You need high rotational speed for driving screws quickly.
- You primarily use hex shank bits for impact applications.
- You prefer a lighter tool for overhead work.
Choose Greenworks 24V Brushless 1/2-Inch Drill Driver if
- You require a standard chuck for drill bits and driver bits.
- You want brushless motor efficiency for longer runtime.
- You need precise torque control with a multi-position clutch.
Verdict: The Milwaukee 18V tool is better for high-speed driving tasks where hex bits are standard. The Greenworks 24V model is the superior choice for general drilling and versatile bit usage. Select based on whether you prioritize speed or chuck compatibility.
18V Impact vs 24V Drill Specs
voltage
The Milwaukee tool operates at 18V, while the Greenworks unit runs on 24V. Higher voltage generally correlates with increased power output and runtime potential. The 24V platform in the Greenworks kit claims 20% more power and 35% more runtime compared to 20V products. This suggests the Greenworks may handle heavier loads or longer continuous tasks more effectively. The 18V Milwaukee is designed for high-speed impact driving rather than sustained drilling torque. You should consider whether your projects require raw power or quick fastening speed. The voltage difference is a primary factor in tool selection.
chuck size
Chuck compatibility defines the range of bits and drill bits you can use. The Milwaukee features a 1/4-inch hex chuck, which is standard for quick-change screwdriver bits and small drill bits. It supports single-handed bit insertion for efficiency. The Greenworks includes a 1/2-inch keyless ratcheting metal chuck. This larger capacity allows you to use a wider variety of drill bits, including larger wood and metal bits, without needing to swap tools. If you need to drill holes in various materials, the 1/2-inch chuck offers greater versatility. The hex chuck is specialized for fastening tasks only.
motor type
Motor technology affects efficiency, noise, and longevity. The Greenworks drill driver utilizes a brushless motor. This design provides more power, quieter operation, longer runtime, and extended motor life compared to brushed alternatives. It also reduces maintenance needs. The Milwaukee impact driver specifications do not explicitly state the motor type in the provided data. While many modern Milwaukee tools are brushless, the data does not confirm this for this specific model. Without explicit confirmation, the Greenworks has a documented advantage in motor technology transparency and efficiency claims. You get verified brushless benefits with the Greenworks.
maximum torque
Torque determines the twisting force available for driving screws or drilling. The Milwaukee impact driver delivers up to 2,000 in-lbs of torque. This high output is ideal for driving long screws into dense materials quickly. The Greenworks drill driver provides 530 in-lbs of torque. While lower than the impact driver, this is sufficient for most drilling and light fastening tasks. The Milwaukee excels in raw power for demanding fastening jobs. The Greenworks offers controlled torque via a 21-position clutch for precision work. If you need brute force, the Milwaukee wins. For controlled drilling, the Greenworks is adequate.
speed settings
Speed settings influence control and application suitability. The Milwaukee impact driver reaches 3,900 RPM, focusing on speed for fastening. It has a 4-mode drive control for different fastening scenarios. The Greenworks drill driver features a 2-speed gearbox with 0-500 RPM and 0-2,000 RPM ranges. This allows for low-speed high-torque applications and high-speed drilling. The variable speed trigger on the Greenworks offers precise control. The Milwaukee is optimized for speed rather than versatile drilling ranges. If you need to drill holes at varying speeds, the Greenworks provides better control. For pure fastening speed, the Milwaukee is faster.
Which 18V or 24V Drill Driver Fits You
Fastener installers needing high speed
This 18V impact driver delivers 2,000 in-lbs of torque and 3,900 RPM. The 1/4-inch hex chuck allows single-handed bit insertion. At 2.2 lbs, it is lightweight. The four-mode drive control offers precision. You get tri-LED lights for visibility. This tool excels at rapid fastening tasks where speed and raw torque matter most.
Drillers needing versatile chuck capacity
This 24V drill driver features a 1/2-inch keyless ratcheting metal chuck. It provides 530 in-lbs of torque with a 21-position clutch. The brushless motor ensures longer runtime and extended life. The two-speed gearbox covers 0-2,000 RPM. You benefit from a compact design and built-in LED light. This setup suits general drilling needs.
Users prioritizing brushless motor efficiency
The Greenworks unit uses brushless motor technology for quieter operation and more power. It claims 20% more power and 35% more runtime compared to 20V products. The overmold cushioned grip reduces vibration and fatigue. You get fade-free power with no memory loss. This efficiency makes it ideal for extended projects where battery life is critical.
Quick picks
| # | Product | Best for | Price |
|---|---|---|---|
| 1 | Milwaukee 18V 1/4-Inch Hex Impact Driver | Fastening tasks with existing batteries | Check price of Milwaukee 18V 1/4-Inch Hex Impact Driver on Amazon |
| 2 | Greenworks 24V Brushless 1/2-Inch Drill Driver | Precision drilling in tight spaces | Check price of Greenworks 24V Brushless 1/2-Inch Drill Driver on Amazon |
The products compared
Milwaukee 18V 1/4-Inch Hex Impact Driver
Best for: Fastening tasks with existing batteries
- Voltage
- 18V (what this guide is about)
- Power Source
- Cordless
- Maximum Torque
- 2,000"/lbs
- Chuck Size
- 1/4" Hex
- Battery Included
- Tool Only
- Included Tools
- Impact Driver
View on Amazon: Milwaukee 18V 1/4-Inch Hex Impact Driver Affiliate link
This is a bare-tool 18V impact driver designed for fastening tasks. It delivers 2,000 in-lbs of torque and reaches 3,900 RPM. The unit weighs 2.2 lbs and measures 4.47 inches long. It features a 1/4 inch hex chuck and four drive modes. You need a separate battery to use it. This tool suits users who prioritize speed and compact size over included power sources.
Pros
- High torque output of 2,000 in-lbs
- Fast 3,900 RPM speed
- Compact 4.47 inch length
- Four mode drive control
- Includes tri-LED lights
Cons
- Sold as a bare tool without a battery
- No drill chuck, only 1/4 inch hex
- Lightweight build may feel less durable
Good fit if
- You already own compatible 18V batteries
- You need high torque for driving screws
- You want a compact tool for tight spaces
Skip if
- You need a drill for making holes
- You want a complete kit with a battery
- You prefer a heavier, more robust tool
Verdict: Milwaukee 18V Impact Driver offers strong torque in a small package. It fits users who already have batteries and need speed for fastening.
Greenworks 24V Brushless 1/2-Inch Drill Driver
Best for: Precision drilling in tight spaces
- Voltage
- 24V (what this guide is about)
- Power Source
- 24V Cordless
- Maximum Torque
- 530 in-lbs
- Chuck Size
- 1/2 in.
- Motor Type
- Brushless
- Number of Tools
- 1-tool
View on Amazon: Greenworks 24V Brushless 1/2-Inch Drill Driver Affiliate link
This 24V cordless drill driver features a brushless motor and a 1/2-inch keyless ratcheting metal chuck. It delivers 530 in-lbs of torque with a 2-speed gearbox and 21+1 position clutch. The compact design weighs 2.43 pounds and includes a built-in LED light. It suits users needing fade-free power and precision control for tight spaces or general drilling tasks.
Pros
- 24V brushless motor for extended runtime
- 530 in-lbs maximum torque
- 1/2-inch keyless ratcheting metal chuck
- 21+1 position clutch for precision
Cons
- Lower torque than 18V impact drivers
- No Bluetooth or app connectivity
- Single tool kit only
Good fit if
- You need a compact 24V drill for tight spaces
- You prefer a metal chuck for bit security
- You want brushless motor efficiency
Skip if
- You require high-torque impact driving
- You need smart tool connectivity
- You want a full combo kit
Verdict: Greenworks 24V Brushless Drill Driver offers solid torque and a durable metal chuck for precision work. It fits users who prioritize compact size and brushless efficiency over raw impact power.
Specifications side by side
| Spec | Milwaukee 18V 1/4-Inch Hex Impact Driver | Greenworks 24V Brushless 1/2-Inch Drill Driver |
|---|---|---|
| Power Source | Cordless | 24V Cordless |
| Voltage | 18V | 24V |
| Maximum Torque | 2,000"/lbs | 530 in-lbs |
| Chuck Size | 1/4" Hex | 1/2 in. |
| Motor Type | not stated | Brushless |
| Battery Included | Tool Only | not stated |
| Number of Tools | not stated | 1-tool |
| Included Tools | Impact Driver | Drill/Driver |
| Speed Settings | 4 mode | 2-speed, 21+1 clutch |
| Tool Weight | 2.2lbs | 2.43 pounds |
| Battery Capacity | not stated | 2.0 Ah |
| Dimensions | 241 × 99 × 137 inches | 9.38 × 4.69 × 10.2 inches |
| Weight | 2.49 pounds | 2.43 pounds |
| Color | Red | Green |
| Model | 2953-20-NBX | DDB5300K |
| Size | not stated | 530 in-lbs Drill Driver |
Frequently asked questions
Is 24V better than 18V for drilling?
Yes, 24V tools generally offer more power for drilling. The Greenworks 24V brushless model provides 530 in-lbs of torque. This higher voltage supports better performance in dense materials. You get increased efficiency and speed compared to lower voltage options.
Can I use an 18V impact driver for drilling?
You can use an 18V impact driver for light drilling, but it is designed for fastening. The Milwaukee 18V unit features a 1/4-inch hex chuck. This design prioritizes high-speed fastening over precision drilling. It lacks the versatility of a dedicated drill driver chuck.
What is the weight difference between 18V and 24V tools?
The Milwaukee 18V impact driver weighs 2.49 pounds. The Greenworks 24V drill driver weighs 2.43 pounds. The difference is minimal at 0.06 pounds. Both tools offer similar portability despite their voltage differences. You will not notice a significant change in handling weight.
Do I need batteries for these tools?
The Milwaukee 18V impact driver is sold as a bare tool. You must provide your own 18V battery. The Greenworks 24V kit includes a 2.0 Ah battery. Check your existing battery inventory before purchasing the Milwaukee option to ensure compatibility.
Which tool has a better chuck for bits?
The Greenworks 24V drill driver has a 1/2-inch chuck. This size accepts a wider range of drill bits. The Milwaukee 18V uses a 1/4-inch hex chuck. This is ideal for driver bits but limits drill bit usage. Choose based on your primary task type.
Is a brushless motor worth the extra voltage?
The Greenworks 24V model features a brushless motor. This design offers improved efficiency and durability. It delivers solid torque in a compact package. If you prioritize precision and runtime, the brushless 24V option is advantageous over standard brushed alternatives.