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The DEWALT DW511 hammer drill with a 7.8-amp motor and variable speed delivers precise hole placement in wood, steel, and masonry.
Pair withDEWALT DW5440 SDS+ Rock Carbide Hammer Bit, 1/2 x 16 x 18 in$10.00
Categories : tools
SKU : WOR-TOO-422
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The DEWALT DW511 is a 1/2-inch variable speed hammer drill powered by a 7.8-amp motor. It's designed for contractors who need reliable drilling into concrete and masonry, as well as everyday wood and steel tasks. The two-mode operation lets you switch between hammer-drill and drill modes, while the 360-degree side handle with depth rod gives you excellent control and accuracy.
The 7.8-amp motor provides high performance and overload protection, so it won't stall on tough jobs. Variable speed trigger allows precise hole placement, and the lightweight 4.3 lb construction reduces user fatigue during extended use.
If the hammer function stops working on your DW511, first check the mode selector — make sure it's fully engaged in hammer mode. If it is, the issue may be carbon brushes or debris in the hammer mechanism. Cleaning the chuck and lubricating the internals can resolve intermittent issues. For persistent problems, consult a qualified service technician.
7.8 amp motor provides high performance and overload protection.
Variable speed allows precise hole placement.
Dual mode: hammer-drill for masonry, drill for wood/steel.
360° side handle with depth rod increases control and accuracy.
Lightweight 4.3 lbs reduces fatigue over long jobs.
Model: DW511
Modes: Hammer/Drill
Power: 7.8 Amp
Speed: Variable (0-2800 RPM)
Weight: 4.3 lbs
Voltage: 120V
Chuck Size: 1/2 in
Product Type: Hammer Drill
Seller: Workbench World
MPN: DW511
To keep the hammer action crisp, you need to keep the drill clean inside and out. After drilling through masonry, blow out the chuck and internal vents with compressed air. Avoid running the drill in hammer mode through wood or steel — it can wear the mechanism prematurely. For longer projects, use the side handle to reduce torque on your wrist, and always grip the drill firmly.
Check that the mode selector ring is fully turned to the hammer setting. If it still won't hammer, carbon brushes or the hammer mechanism may need service. Clean and inspect the drill before seeking repair.
Yes, but it's a drill, not a driver. Use a clutch-less design, so be careful not to overdrive screws. It's best used for drilling, not sustained screwdriving.
The 1/2-inch chuck will accept up to 1/2-inch masonry bits, but for heavier masonry drilling, use carbide-tipped bits and lower speed settings.
Rotate the collar behind the chuck to align the arrow with the drill symbol for standard drilling, or the hammer symbol for hammer drilling.
This drill is built like the old ones from forty years ago. The chuck holds bits tight and the motor doesn't bog down. I ran it through a dozen holes in concrete and it never complained. The weight is fine if you're used to real tools. It's not some fancy cordless toy. If you want a hammer drill that will outlive you, this is it.
I used this to drill into brick for a new light fixture. It powered through without too much effort. Just a bit heavy for me, but it's solid.
Punches through concrete like butter.
I used it to drill anchor holes in brick. It worked fine, though a bit heavy.
Drilled through steel beams without bogging down. The variable speed helps.
My husband used to handle all the repairs. After he passed, I needed a drill for simple projects. This one is easy enough for me to manage. It has plenty of power for what I need. I feel safe using it. The chuck grips bits well. I'm glad I bought it.
