Hammer vs. Rotary Hammer: What’s the Difference?

  • lekmin
  • Jun 25, 2023
Dongcheng electric hammer drill 6 amp
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When it comes to drilling into difficult materials, having the right tool in your arsenal can make all the difference. Enter the hammer drill and rotary hammer, two powerhouses of the drilling world. These versatile tools have their own unique capabilities, and each is designed to meet specific drilling challenges. Whether you are a DIY enthusiast or a professional tradesman, understanding the differences between these two tools is crucial to choosing the right tool for your project.

In this blog post, we will delve into the world of hammer and rotary hammer drills, and explore their mechanisms, applications, and advantages. In the end, you’ll have a clear understanding of which tool is best suited to your drilling needs, ensuring that you can confidently take on any drilling job that comes your way.

So grab your hard hat and roll up your sleeves as we embark on a journey to uncover the secrets behind hammer drills and rotary drills. Let’s discover the power behind the thing and unlock the true potential of these indispensable tools.


Hammer drills and rotary hammers are versatile power tools used for drilling holes in various materials such as wood, metal, concrete and masonry. While they do have similarities, there are distinct differences between the two.

The main differences lie in drilling mechanisms, applications, speed, impact capabilities, and chuck types. Hammer drills excel in hard materials like concrete and masonry due to their hammering action, while rotary hammers can handle a wide variety of applications.



The main difference lies in their drilling mechanisms. The hammer drill uses a spring hammering action combined with a rotating action to create the drilling effect. It uses a clutch mechanism that transmits the impact force to the drill bit, allowing it to penetrate materials such as concrete and masonry. This mechanism is ideal for light to medium drilling jobs. On the other hand, a rotary hammer works using a piston-driven system. It generates a more aggressive and powerful hammering action, which results in fast strikes as the drill bit rotates. This mechanism enables the rotary hammer to tackle heavy-duty drilling tasks, making it the preferred choice for professionals working with concrete, stone, and other tough materials.

Regardless of Dong Cheng Both the hammer drill and rotary hammer feature an optimized mechanism design and an optimal hammer-to-drill ratio, which ensures efficient power transfer without any loss. This design allows our tools to deliver maximum power, making them highly effective in working with concrete and other difficult materials. With Dong Cheng, you can trust optimum performance and superior drilling capabilities to tackle any task with ease.


The choice between a hammer drill and a rotary drill depends on the type of work you intend to do. It is important to choose the right tool to get the most out of both your projects and tools.

Hammer drills are ideal for tasks that involve drilling into hard materials such as concrete, stone or masonry. They are very versatile and can be used for tasks such as drilling holes for screws, creating holes for wire, or general drilling in less demanding materials. They are commonly used on construction and renovation projects that involve installing anchors, drilling into walls, or working with concrete surfaces.

the Dongcheng electric hammer drill 6 amp It features a high-powered 710-watt motor that achieves sustainable and stable output with a maximum drilling diameter of 5/8 inch on concrete. It has both drilling and impact drill functions for more versatile jobs.

The hammer drill has a one-key switch between the front and the back to ensure high efficiency. The self-locking switch design can easily handle long-term continuous work. This hammer drill features adjustable speed for precise control, ensuring consistent power transmission.

Dongcheng electric hammer drill 6 amp
DongCheng 6A Electric Hammer Drill (DZJ05-13) – For Concrete, Metal and Wood

Rotary hammers excel in drilling concrete, demolition work, heavy construction, renovation, remodeling, and infrastructure projects.

the DongCheng 9.2 Amp 1-1/8 in. Electric rotary hammer It has a high quality 1100 watt motor with a maximum drilling diameter of 1-1/8 inch. The rotary drill has the functions of electric drill, electric hammer, and electric cutter. This means that you get more work options from just one tool. It also features a safety clutch function for safer use.

DongCheng 1-1/8Inch 9.2 Amp Heavy Duty Electric Rotary Hammer Drill
DongCheng 1-1/8Inch 9.2 Amp Heavy Duty Electric Rotary Hammer Drill (DZC03-28) – For Concrete

The rotary drill has an SDS-Plus (Slotted Drive System) quick change chuck which makes it easy to replace the cartridges. And with a variety of shock absorbent designs, the drill can be used for longer periods thanks to less vibration.

adverb type

Both hammer and rotary hammer drills come with different types of chuck to fit different drill bits. However, rotary hammer drills often have a specialized SDS chuck or similar mechanism that allows for quick and easy changes, especially for the larger sizes commonly used in masonry work. Hammer drills typically use keyless chucks or sometimes key chucks, providing a wide range of compatibility with various standard drill bits.

DongCheng drills feature a specialized SDS chuck for optimum efficiency. This allows you to use the bits you need when you need them.

Dig like a pro

Choosing the perfect tool for the task at hand is like finding the key that unlocks a world of efficiency and effectiveness, and with DongCheng you get just that. Contact DongCheng Power Tools For all your power tool needs.