DeWalt Rotary Hammer Drill Review
DeWalt rotary hammer drills are known for their rugged build and high impact energy, making them a go-to for concrete drilling and light chipping. This review covers the top models, their real-world specs, and how they compare to key competitors from Bosch and Makita.
Quick answer
The DeWalt DCH273B 20V MAX* XR brushless rotary hammer is the best overall pick for cordless concrete drilling, offering 2.1 J of impact energy and a compact design. For budget-focused buyers needing a corded model, the DeWalt D25303K delivers reliable performance at a lower price point.
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Research updated June 2026.
DeWalt DCH273B 20V MAX* XR Brushless Rotary Hammer
Best overall cordless rotary hammer for concrete drilling and light chipping.
Pros
- High impact energy for cordless class
- Brushless motor for longer runtime
- Compact and lightweight design
Cons
- Battery and charger sold separately
- Not ideal for heavy chipping
Who is the DeWalt Rotary Hammer Drill for?
This tool is designed for contractors, electricians, plumbers, and serious DIYers who need to drill into concrete, brick, or block. The cordless model is especially useful for overhead work or jobs without easy access to power. The corded version suits those who need continuous runtime for heavy drilling.
Performance and Power
The DCH273B delivers 2.1 J of impact energy, which is strong for a compact 20V MAX* tool. Owner reviews on retailer sites note that it drills 1/2-inch holes in concrete quickly, and the brushless motor provides consistent power without bogging down. The variable speed trigger and adjustable side handle give good control. The corded D25303K offers 1.6 J of impact energy, which is lower but still adequate for light to medium concrete work, and it maintains steady power without battery concerns.
Build Quality and Durability
DeWalt rotary hammers are built with a metal gear housing and a rubber overmold for grip and shock absorption. The DCH273B features a dust-resistant switch and a LED light for visibility. Owner feedback indicates that the tool holds up well on job sites, though some users report that the chuck can wear over time with heavy use. The 3-year limited warranty covers defects, but not abuse.
Alternatives to Consider
Bosch offers the RH328VC, a corded rotary hammer with 2.6 J of impact energy and a variable speed control, known for its lower vibration. Makita's XRH07Z is a 36V (18V X2) cordless model with 2.6 J of impact energy, offering more power but at a higher weight. Milwaukee's 2712-20 delivers 2.1 J of impact energy and is a direct competitor to the DeWalt, with a similar price and performance profile.
| Model | Best For | Impact Energy | Power Source | Rating |
|---|---|---|---|---|
| DeWalt DCH273B | Best Overall | 2.1 J | 20V MAX* Battery | 4.6 / 5 |
| DeWalt D25303K | Best Budget | 1.6 J | Corded (8.5 A) | 4.3 / 5 |
| DeWalt DCH133B | Light Duty | 1.4 J | 20V MAX* Battery | 4.1 / 5 |
| DeWalt D25263K | Heavy Duty | 2.6 J | Corded (10 A) | 4.5 / 5 |
| DeWalt DCH481B | Demolition | 4.2 J | 60V MAX* Battery | 4.4 / 5 |
DeWalt DCH273B 20V MAX* XR Brushless Rotary Hammer
Best OverallPros
- Brushless motor for efficiency
- Compact and lightweight
- Good impact energy for cordless
Cons
- Battery sold separately
- Not for heavy chipping
The DCH273B is a compact cordless rotary hammer that offers a good balance of power and portability. It features a brushless motor that extends runtime and a 2.1 J impact energy that handles 1/2-inch concrete drilling with ease. Owner reviews highlight its low vibration and comfortable grip.
This tool is ideal for professionals who need a reliable concrete drill for daily use. The lack of a battery in the kit is a downside for new DeWalt users, but for those already in the 20V MAX* system, it is a logical upgrade.
DeWalt D25303K 8.5 Amp 1-1/8-Inch SDS Rotary Hammer
Best BudgetPros
- Affordable price
- Includes side handle and depth rod
- Reliable corded power
Cons
- Lower impact energy
- No case included
The D25303K is a budget-friendly corded rotary hammer that provides consistent power for light to medium concrete drilling. It uses an 8.5 amp motor and an SDS chuck for quick bit changes. Owner reviews mention it drills well for the price, but it is not as fast as higher-end models.
This tool is best for DIYers or occasional use where cordless convenience is not needed. The lack of a carrying case is a minor inconvenience, but the included side handle and depth rod add value.
DeWalt D25263K 10 Amp 1-1/8-Inch SDS Rotary Hammer
Heavy Duty CordedPros
- High impact energy
- Variable speed trigger
- Includes case and accessories
Cons
- Heavier than cordless models
- Requires power outlet
The D25263K is a heavy-duty corded rotary hammer that delivers 2.6 J of impact energy, making it suitable for larger concrete anchors and light chipping. It features a variable speed trigger and a vibration control handle for comfort. Owner reviews praise its drilling speed and durability.
This tool is a good choice for contractors who need continuous power for long drilling sessions. The included kit case and extra accessories add significant value over the bare tool models.
DeWalt DCH481B 60V MAX* FLEXVOLT Rotary Hammer
Demolition PowerPros
- Very high impact energy
- FLEXVOLT battery works with 20V tools
- Active vibration control
Cons
- Heavy and bulky
- Expensive
The DCH481B is a powerful cordless rotary hammer that uses a 60V MAX* FLEXVOLT battery to deliver 4.2 J of impact energy, rivaling corded models. It is designed for heavy demolition work, including drilling large holes and chipping. Owner reviews note its impressive power but also its significant weight.
This tool is best for professionals who need cordless power for heavy concrete work. The battery system is versatile, but the price and weight make it overkill for light tasks.
DeWalt DCH133B 20V MAX* XR Brushless Rotary Hammer
Light DutyPros
- Very lightweight
- Brushless motor
- Good for small anchors
Cons
- Lower impact energy
- Not for heavy concrete
The DCH133B is a compact and lightweight cordless rotary hammer designed for light-duty tasks like drilling small holes in brick or block. It has a brushless motor and a 1.4 J impact energy. Owner reviews appreciate its ease of use for overhead work but note it struggles with dense concrete.
This tool is best for electricians or DIYers who need a small rotary hammer for occasional use. It is not suitable for heavy drilling or chipping.
What to Check Before Buying a Rotary Hammer Drill
Consider the impact energy, measured in joules, as it determines drilling speed and capacity. Higher joules (2.1 J and above) are better for larger holes and dense concrete. Also check the power source: corded models offer continuous power, while cordless models provide portability but require battery investment. The SDS chuck system is standard for rotary hammers and allows for quick bit changes.
Mistakes to Avoid
A common mistake is buying a rotary hammer with too little impact energy for the job, leading to slow drilling and overheating. Another is ignoring the battery ecosystem: ensure the tool is compatible with your existing batteries. Finally, do not use a rotary hammer for chipping unless it has a dedicated chipping mode, as this can damage the tool.
FAQs
What is the difference between a hammer drill and a rotary hammer?
A rotary hammer uses a piston mechanism to deliver higher impact energy for concrete, while a hammer drill uses a cam-action mechanism for lighter masonry.
What does SDS mean on a drill?
SDS stands for Slotted Drive System, a chuck design that allows bits to slide and rotate for better impact transfer and quick changes.
Can I use a rotary hammer as a regular drill?
Yes, most rotary hammers have a drill-only mode for wood or metal, but they are heavier and less precise than a standard drill.
How many joules do I need for concrete drilling?
For 1/4-inch holes, 1.4 J is enough; for 1/2-inch holes, 2.1 J is recommended; for larger holes, 2.6 J or more is better.
Is the DeWalt DCH273B brushless?
Yes, the DCH273B features a brushless motor for improved efficiency and runtime.
Does the D25303K come with a case?
No, the D25303K is a bare tool and does not include a carrying case.
What is the warranty on DeWalt rotary hammers?
DeWalt offers a 3-year limited warranty on most rotary hammers, covering defects in materials and workmanship.
Can I use DeWalt 20V batteries in the 60V FLEXVOLT hammer?
No, the DCH481B requires a 60V MAX* FLEXVOLT battery, but that battery can also be used in 20V tools.
Which is better, Bosch or DeWalt rotary hammer?
Bosch models often have lower vibration and better dust management, while DeWalt offers a wider battery ecosystem and similar power.
What size bit can a rotary hammer use?
Most 1-1/8-inch SDS rotary hammers accept bits up to 1-1/8 inches in diameter, but larger models can take up to 1-1/2 inches.
Our verdict
The DeWalt DCH273B 20V MAX* XR brushless rotary hammer is the best overall choice for its balance of power, portability, and build quality. For budget buyers, the corded D25303K offers reliable performance at a lower cost. Both models deliver the durability and performance expected from DeWalt.