Dong Cheng 20V MAX Brushless Cordless Rotary Hammer Drill (22mm SDS-Plus), 4 Modes with 4.0Ah Battery
Product description
What this is for (and why you’d pick it)
A cordless rotary hammer drill is the tool you reach for when a normal hammer drill just doesn’t bite. This Dong Cheng model is built around an SDS-Plus setup (22mm mentioned in the product name) and a rotary hammer mode, so it’s designed for drilling in tougher masonry materials such as concrete, brick and similar wall applications.
On paper it’s aimed at homeowners, landlords, and DIYers who want one versatile drill for day-to-day jobs rather than a dedicated, corded demolition tool. It also leans practical: there are 4 application modes, an auxiliary anti-vibration handle, and an LED work light, all of which make the drill feel more “useable” when you’re doing multiple tasks across a room or site.
Worth noting though: it’s still a cordless tool with specific performance limits. For very heavy chiselling or frequent professional demolition, it may feel more like a solid DIY/rental-style option than something you’d rely on all day.
Key takeaways
The headline features that matter most in real use are the brushless motor, the 4-mode control, and SDS-Plus quick bit changes. If you’re the kind of buyer who wants to switch between drilling and chisel-style work without faffing around, the layout makes sense.
It also includes a 0-1400 RPM variable-speed trigger and a mode-based speed/BPM figure (4500 BPM stated), so you’re not locked into one pace. The forward & reverse switch is there to help with control and drilling accuracy depending on the task.
You also get an ergonomic, cushioned grip, plus vibration reduction at the handles. That won’t erase every bit of hammering sensation, but it should help keep use more comfortable over longer sessions.
What you’ll notice in use
Switching modes is done with a knob, covering hammer, drilling, chisel and rotary hammer. That’s the sort of range that can cover a lot of typical tasks: drilling holes into masonry for fixtures, using a more hammering-focused action when the material calls for it, and chisel mode when you need to loosen or shape where drilling alone won’t do the job.
A quick example: imagine you’re fitting brackets on a brick wall. You’d start with the drill/hammer-style mode for the holes, use the LED to keep the bit visible, and rely on SDS-Plus for faster bit changes if you need to swap from a concrete bit to a different diameter for a subsequent step.
The auxiliary handle is 360° adjustable. Again, that’s not glamorous, but it helps with control—especially when you’re drilling overhead or at awkward angles.
And if you’re working in dim areas, the built-in LED work light is a straightforward benefit. It’s the kind of thing you’ll actually miss on drills that don’t include it.
Tech specs
- Name: Dong Cheng 20V MAX Brushless Cordless Rotary Hammer Drill
- Type: Cordless rotary hammer drill (SDS-Plus)
- Format: Rotary hammer / hammer / drilling / chisel modes
- Capacity: 4.0Ah battery pack
- Material: Not specified in the provided information
- Colour: Not specified in the provided information
- Processor: Not specified in the provided information
- Impact energy: 2.1 Joules
- Speed: 0–1400 RPM (variable speed trigger)
- Bit system: SDS-Plus chuck for quick bit change
- Modes: 4 application modes (hammer, drilling, chisel, rotary hammer)
- Impact/operation rate: 4,500 BPM in different modes (as stated)
- Handle: 360° auxiliary anti-vibration handle
- Control: Variable speed trigger with forward & reverse switch
- Light: Built-in LED work light
- Battery indicator: 4-bar fuel gauge for power level
Pros
- Brushless motor design with variable speed trigger, so it’s easier to match drilling pace to the job
- 4 modes on one knob (hammer, drilling, chisel, rotary hammer) for mixed tasks
- SDS-Plus chuck for quicker bit changes
- Anti-vibration auxiliary handle plus a vibration reduction mechanism at the handles (helpful for comfort)
- LED work light improves bit visibility
- Battery pack includes a 4-bar fuel gauge, which reduces the guesswork mid-job
What might not suit everyone
It’s a practical cordless rotary hammer, but it may not be the best choice if you’re doing heavy, continuous masonry breaking day after day. On cordless kits, run-time and impact performance are always the limiting factors, and this one’s described impact energy is 2.1 Joules—useful, but not positioned as “unlimited power”.
Also, the modes are broad (hammer, drilling, chisel, rotary hammer), yet some users prefer more granular control or specialist options depending on the exact masonry and bit type they use. If you’re very fussy about fine drilling control in tough materials, you may want to double-check the mode you’re selecting and take it slow.
It might not suit you if you need a kit that can handle long chiselling sessions without worrying about battery capacity.
What’s included and what it’s for
The product listing says it includes 4 drill bits for concrete/brick/wall/metal, along with the drill and a 4.0Ah battery. That gives you a decent starting kit for typical home projects—fixings in masonry, general drilling, and some metal work depending on the included bit type.
It’s a good fit if you want one cordless SDS-Plus tool for mixed drilling/chiselling tasks around a house, small property, or DIY renovation. It makes sense if you value comfort features (anti-vibration handle and vibration reduction) and like having an LED light and battery fuel gauge.
It may not suit you if your main jobs are long, heavy-duty demolition or constant, large-batch drilling where a corded setup or a higher-output system would be the more realistic route.
Getting the most from it (quick buying checklist)
Before you buy, it’s worth thinking about a few practical points: - Check what you’ll be drilling into most often (concrete, brick, masonry) and whether the included bits cover your needs. - Consider how often you’ll use chisel/rotary hammer mode. If you’ll do lots of that, battery capacity and working rhythm matter more. - Make sure you’re comfortable using an SDS-Plus chuck and that the bit sizes you plan to use are compatible with the SDS-Plus system. - If you’re drilling at odd angles or overhead, the adjustable 360° auxiliary handle is a real advantage—so think about how your projects are laid out.
Is it worth it?
A solid buy if you’re after a cordless brushless rotary hammer drill with SDS-Plus quick bit changing, 4 modes, LED visibility, and comfort-focused vibration reduction for everyday masonry jobs. The 2.1 Joules impact energy, 0–1400 RPM variable speed, and stated 4,500 BPM give it a sensible DIY-to-small-job feel rather than “top-end pro” intent.
You may want to skip it if your work is heavy, continuous chiselling or frequent, high-volume masonry breaking where cordless limits will start to show. In that scenario, you’ll likely be better served by a more purpose-built solution for sustained use.
Mini FAQ
Does it have a variable speed trigger?
Yes. The drill is described as having a variable speed trigger with a stated range of 0–1400 RPM.
What do the 4 modes do?
The modes are listed as hammer, drilling, chisel and rotary hammer, switched via a knob for different drilling/chiselling needs.
Is SDS-Plus supported?
Yes, it’s described as having an SDS-Plus chuck for quick bit changes.
Will it work for concrete and brick?
The product description explicitly targets drilling through concrete and brick/masonry, depending on the selected mode.
Is the LED light useful?
The built-in LED work light is included to illuminate your workspace without needing an extra light source.