Put down that hammer drill; it’s going to take too long to get the job done. When you want to make lots of holes in concrete, you need a tool that cuts like a hot knife through butter. You want a rotary hammer drill. And now you don’t even need a power cord to get to work. Let’s take a look at these two DEWALT power tools to see which one is the best for the task ahead.
DEWALT DCH133B 20V Max XR Brushless 1” D-Handle Rotary Hammer Drill
Obviously, when you glance at the DCH133B and the DCH273B, you can see they look different. At 15.26 inches in length, the DCH133 has a longer body than the other rotary hammer drill. But let’s see what other details set them apart so you can choose the best one for your work.
Although both tools have brushless motors for long life and efficient power use, they have different power outputs. The DCH133 is more powerful with 2.6 joules of impact energy and up to 5550 blows per minute. Under no load, the SDS+ chuck spins up to 1500rpm. Of course, you’ll have full control over the velocity with the variable speed trigger.
With that much power, you can drill 3/16 to 5/8-inch in concrete and do chipping, too. The 1-inch chuck allows for chisel rotation as well.
What happens if your bit binds while you drill? The DCH133 has a mechanical clutch that reduces sudden torque reactions. It also helps you un-stick the bit and remove it from the rock. And since it’s an SDS+ system, you can change bits with one hand.
DEWALT explains that the brushless motor inside the DCH133 is German-engineered and especially designed for a long service life. It maintains speed without bogging down even in the hardest concrete.
And if you need to keep things neat while you work, the DCH133B is ready to use with a dust extraction system like the DEWALT D25301D.
Finally, the DCH133B runs on DEWALT’s 20V MAX lithium-ion batteries, but since it’s a bare tool, the battery’s not included in the box. If you have a compatible battery pack already, you’re good to go.
The only thing in the box with the rotary hammer drill is the 360-degree adjustable side handle and the depth stop rod.
More features of the DEWALT DCH133B hammer drill:
- Covered by a 30-day money-back guarantee, a 1-year free service contract, and a 3-year limited warranty
DEWALT DCH273B 20V Max Brushless SDS Rotary Hammer Bare Tool
Where the DCH133B is longer and more powerful, the DCH273B is compact, with better vibration dampening. It has the trademarked SHOCKS active control that reduces vibrations down to 6.6m/s2. That’s important for protecting the user from nerve damage over time.
Since the DCH273 has a short barrel and weighs only 5.4 pounds without the battery, DEWALT recommends it for when you need to drill overhead. It’s compatible with their D25303DH dust extraction system to help you keep debris out of your way while you work.
Like the DCH133B reviewed above, the DCH273B rotary hammer drill also has a German-engineered brushless motor. This motor was built to run efficiently on batteries and still provide as much power as a corded drill.
Of course, it’s not as fast because it’s a rotary hammer drill, not a driver. But the variable speed trigger controls the SDS+ chuck’s velocity up to 1100rpm. Should your bit bind, the clutch is built to reduce high torque reactions so the drill won’t twist your wrist.
Finally, the motor outputs 2.1 joules of impact energy with up to 4600 blows per minute. It can also do chipping. DEWALT says that it’s optimized for drilling in 5/32 to ½-inch concrete.
More features of the DEWALT DCH273B hammer drill:
- Covered by a 30-day money-back guarantee, a 1-year free service contract, and a 3-year limited warranty
- Comes with 360-degree side handle, depth rod, and retractable utility hook but no battery or charger
Recommendation
If you spend time working overhead, consider getting the DEWALT DCH273B because of its light weight and easy-to-balance compact format. It also has reduced vibration for safety.
Otherwise, the DCH133B is more powerful, ready to tackle up to 5/8-inch concrete.
Click here to purchase DEWALT DCH133B on Amazon.com!
Click here to purchase DEWALT DCH273B on Amazon.com!
I just bought this guys as all my tools are 20v max. I am sure it’s going to kick butt on mo day at work. I am wondering, maybe others are as well, what’s the largest core bit that is recommended for poured concrete?