Greenworks 24V Cordless Rotary Hammer Review (2026): A Spec-Based Look
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This greenworks 24v cordless rotary hammer review focuses on the HMD401 model, a compact tool designed for drilling into hard materials. It features a brushless motor that delivers 2.1 joules of impact energy. The tool accepts 1-inch SDS Plus bits, allowing for quick, tool-free changes. Weighing 5.44 pounds, it balances power with portability. The 24V lithium-ion system provides fade-free performance. You get a 4Ah battery and charger in the box. This spec-based look helps you decide if the hardware matches your project needs.
What stands out
- Brushless motor for reduced vibration and longer life
- 2.1 joules of impact energy for concrete and masonry
- 4-mode operation: drill, hammer drill, chisel, and chisel rotation lock
- SDS Plus chuck for one-handed bit changes
- Includes 4Ah battery and charger for immediate use
Who it fits
Good fit for
This tool suits DIYers and professionals who need to drill into concrete, steel, or masonry without the hassle of cords. The 2.1 joules of impact energy handles standard masonry tasks efficiently. The compact design and 5.44-pound weight make it easy to maneuver in tight spaces. If you already own Greenworks 24V batteries, this kit offers a convenient upgrade with included power and charging gear.
Who should skip it
You should look elsewhere if you require heavy-duty demolition or large-diameter core drilling. The 1-inch chuck limits bit size, restricting heavy construction work. The 2.1 joules of impact energy is moderate, so it may struggle with very thick or reinforced concrete. Users needing higher power output or a larger chuck capacity will find this tool insufficient for their specific heavy-duty requirements.
Verdict: The Greenworks HMD401 is a capable, cordless rotary hammer for standard masonry drilling tasks. Its brushless motor and included battery make it a practical choice for users already in the 24V ecosystem.
Key specs explained for this model
Impact Energy: 2.1 Joules
This value measures the force of each hammer blow. Higher joules mean the tool drives bits deeper into concrete with fewer strokes. You benefit from faster drilling in masonry. Compare this to lower-energy drills that require more effort. It ensures efficient penetration for anchor installation.
Motor Type: Brushless
Brushless motors lack carbon brushes, reducing friction and wear. This design extends the tool's lifespan and improves efficiency. You get longer runtimes per charge and less maintenance. The motor generates less heat during heavy use. It is a practical choice for frequent professional or DIY applications.
Weight: 5.44 lbs.
This weight reflects the tool's balance for overhead or prolonged use. At 5.44 pounds, it is manageable for one-handed operation in tight spaces. You reduce fatigue when drilling vertically or horizontally. Compare this to heavier corded models. It offers portability without sacrificing the power needed for hard materials.
Bit System: SDS Plus
SDS Plus is a standard shank type for rotary hammers. It allows for quick, tool-free bit changes by simply pushing and twisting. You save time when switching between drilling and chiseling. The system provides a secure grip to handle high impact forces. It is the most common interface for this tool class.
Battery Included: 4Ah
The 4Ah capacity indicates the energy storage of the lithium-ion battery. This size provides a balance between runtime and weight. You can drill more holes before needing to recharge. It supports the brushless motor's power demands. Compare this to smaller 2Ah batteries for longer project completion times without interruption.
Design and Build Analysis
The listing describes the Greenworks HMD401 as a compact, cordless rotary hammer. It weighs 5.44 pounds, a figure that includes the battery. This mass supports stability during heavy duty work. The tool’s dimensions are 11.2 inches in length and 4.41 inches in width. These measurements allow you to access tight areas where larger corded units might not fit. The green finish is standard for the brand and does not affect performance.
You control the tool via a side button that switches between four modes. These include drilling, hammer drilling, chisel, and chisel rotation lock. This layout lets you adapt quickly to different materials without changing hardware. The auxiliary handle and depth guide are included for increased accuracy. You can adjust the handle position to suit your grip. The SDS Plus chuck enables one-handed, tool-free bit changes. This design choice reduces downtime when switching between drilling and chiseling tasks.
The brushless motor is housed within a durable casing. According to the listing, this motor type offers less vibration and lower noise. It also provides longer service life. The 24V power source delivers fade-free power. You get consistent performance until the battery is depleted. The compact size and manageable weight make it suitable for overhead work or prolonged use. You are not limited by a power cord, which adds freedom on the job site.
Setup And Everyday Use
Setting up this tool is straightforward because the package includes a 4Ah battery and charger. You simply charge the lithium-ion cell before first use. The brushless motor requires no maintenance, so you do not need to replace brushes over time. Once charged, the battery connects to the tool for immediate operation. The cordless design means you are not limited by a power cord length, allowing you to move freely around the job site.
In daily use, the 24V power source delivers fade-free energy. The 2.1 joules of impact energy helps you drill through concrete, steel, and masonry efficiently. You can switch between four modes using the side button. These modes include standard drilling, hammer drilling, chisel mode, and a chisel rotation lock. This flexibility lets you handle different tasks without changing tools.
The SDS Plus chuck allows for one-handed, tool-free bit changes. This feature saves time when you need to swap bits frequently. The auxiliary handle and depth guide provide better control and accuracy. The compact size, weighing 5.44 pounds with the battery, helps you reach tight spaces. The brushless motor reduces vibration and noise, which may make longer work sessions more comfortable. You can rely on the 4Ah battery for extended run-time, ensuring you complete your project without frequent interruptions.
Before You Buy This Tool
This Greenworks HMD401 is a single tool, not a full combo kit. You will need to verify that your existing 24V batteries are compatible. The listing confirms a 4Ah battery and charger are included, but if you already own Greenworks 24V tools, you can save on extra power sources. Check that your SDS Plus bits fit the 1-inch chuck. The brushless motor reduces maintenance needs, but you must keep the chuck clean for smooth operation. Store the tool in a dry place to protect the electronics. Compared to larger hammer drills, this compact design fits tight spaces. However, for heavy demolition, you might want a more powerful option. This unit suits light to medium drilling in concrete and masonry. It is ideal for users who already have a Greenworks ecosystem. If you need a standalone rotary hammer, this is a solid choice. Just ensure your bit selection matches the SDS Plus standard.
Check before you buy
- Confirm your existing batteries are 24V Greenworks.
- Ensure you have SDS Plus drill bits.
- Check if the 2.1J impact energy meets your needs.
- Verify the 5.44lb weight suits your work style.
- Review the 4-mode switch for your specific tasks.
The product at a glance
Greenworks 24V Brushless 1-Inch Cordless Rotary Hammer
Best for: Moderate masonry work in tight spaces
- Power Source
- 24V
- Impact Energy
- 2.1 Joules
- Chuck Size
- 1 in.
- Bit System
- SDS Plus
- Motor Type
- Brushless
- Battery Included
- Yes (4Ah battery & charger)
View on Amazon: Greenworks 24V Brushless 1-Inch Cordless Rotary Hammer Affiliate link
This Greenworks 24V rotary hammer uses a brushless motor to deliver 2.1 joules of impact energy. It features an SDS Plus chuck for quick bit changes and offers four operational modes. The unit weighs 5.44 lbs and includes a 4Ah battery. Its compact design allows access to tight spaces. This tool suits users needing efficient drilling in concrete and masonry without cord restrictions.
Pros
- Brushless motor reduces vibration and extends service life
- 2.1 joules of impact energy for hard materials
- Four modes including chisel rotation lock
- Includes 4Ah battery and charger
Cons
- 2.1 joules is lower than heavy-duty alternatives
- Battery capacity limited to 4Ah
- No mention of electronic clutch or brake
Good fit if
- You need a lightweight tool for tight spaces
- You require four distinct drilling and chiseling modes
- You already own Greenworks 24V batteries
Skip if
- You drill large diameter holes in thick concrete daily
- You need more than 2.1 joules of impact force
- You prefer corded tools for unlimited runtime
Verdict: Greenworks 24V Brushless Rotary Hammer offers solid performance for moderate masonry tasks. It fits homeowners and tradespeople who value portability and mode versatility over raw power.
Specifications side by side
| Spec | Greenworks 24V Brushless 1-Inch Cordless Rotary Hammer |
|---|---|
| Power Source | 24V |
| Impact Energy | 2.1 Joules |
| Chuck Size | 1 in. |
| Bit System | SDS Plus |
| Motor Type | Brushless |
| Battery Included | Yes (4Ah battery & charger) |
| Weight | 5.44 lbs. |
| Voltage | 24V |
| Included Tools | Drill Driver, Work Light, Hammer Drill, Rotary Hammer |
| Battery Capacity | 4.0 Ah |
| Bit Type | SDS-Plus |
| Application | Concrete |
| Dimensions | 11.2 × 4.41 × 19.1 inches |
| Size | Brushless 2.0J Rotary Hammer Drill |
| Color | Green |
| Model | HMD401 |
Frequently asked questions
What is the weight of the Greenworks 24V rotary hammer without the battery?
The tool itself weighs 2.75 pounds. This light weight makes it easier to handle in tight spaces or overhead. The full weight with the included 4.0 Ah battery is higher, but the base unit remains compact. You benefit from reduced arm fatigue during extended drilling sessions in concrete or masonry.
Does this model include a brushless motor?
Yes, the Greenworks HMD401 features a brushless motor. This design eliminates carbon brushes, which reduces maintenance needs and extends the motor's lifespan. You get more efficient power delivery and longer runtime per charge compared to brushed alternatives. It is ideal for users who want reliable performance without frequent upkeep.
What type of drill bits does this rotary hammer accept?
It accepts 1-inch SDS-Plus bits. This standard interface allows for quick, tool-free bit changes. You can easily swap between drilling and chiseling functions by changing the bit. The 1-inch chuck size accommodates a wide range of common masonry bits for various concrete and stone applications.
Is the Greenworks 24V rotary hammer suitable for heavy structural concrete?
It is best for moderate masonry work in tight spaces. With 2.1 joules of impact energy, it handles standard concrete drilling well but may struggle with very thick or reinforced structural concrete. You should reserve this tool for general home projects or light trade work rather than heavy industrial demolition tasks.
What is included in the Greenworks 24V brushless rotary hammer package?
The kit includes the rotary hammer, a 4.0 Ah battery, and a charger. It also comes with a drill driver, work light, and hammer drill in some combo configurations. You get a complete power solution for various tasks. The included battery ensures you can start working immediately after charging.
How long is the Greenworks HMD401 rotary hammer?
The tool measures 11.2 inches in length. This compact size helps you access confined areas where larger rotary hammers cannot fit. You can maneuver it easily around obstacles or in tight corners. The width is 4.41 inches, contributing to its manageable profile for detailed masonry work.