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A hammer drill is useful when a regular drill bogs down in brick, concrete block, or light concrete. For typical home jobs—hanging shelves, fixing a railing, or installing a few masonry anchors—the right choice is usually a standard cordless drill with a hammer setting, not a heavy rotary hammer. The best fit depends on the wall, hole size, and how many holes you need to make.
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Match the tool to the wall
A hammer drill spins the bit while adding short, rapid impacts along its axis. That helps a masonry bit grind through the material. It works well for small holes in brick and block, and occasional holes in poured concrete. The hammer action can be switched off for wood, metal, and screwdriving.
A rotary hammer uses a different mechanism that delivers stronger blows. It is the better choice for repeated holes in hard concrete, larger holes, or chiseling. It costs more, weighs more, and is less convenient for ordinary drilling and driving. If you are drilling a handful of holes around 1/4 inch in brick, a hammer drill is generally the sensible purchase. If you need many 3/8-inch or larger holes in concrete, consider a cordless SDS-plus rotary hammer instead.
| Tool | Good for | Main trade-off |
|---|---|---|
| Regular drill | Wood, metal, and very occasional soft masonry holes | Slow in masonry; can stall or overheat |
| Hammer drill | Small to medium holes in brick and block; occasional concrete work | Slower and more tiring than a rotary hammer in hard concrete |
| Rotary hammer | Repeated or larger holes in concrete; some chiseling | Bulkier, costlier, and unnecessary for many household jobs |
Choose cordless power and size
For a new cordless setup, a 18V or 20V-class hammer drill is a versatile choice. Those voltage labels describe the same general battery class; they do not tell you how much drilling power a tool has on their own. Compact 12V models can handle occasional small holes in brick, but they have less reserve when the material gets hard or the bit gets larger.
Look for a two-speed gearbox, a hammer mode, and a clutch for driving screws. A low gear gives better control and torque; a high gear is useful for smaller holes. A side handle is valuable, especially when drilling concrete or using larger bits, because a bit can catch unexpectedly. If you already own batteries from a tool platform, buying a compatible bare tool often saves money. Otherwise, a kit with two batteries lets one charge while you work. A cordless 18V hammer drill kit is a practical starting point for mixed home use.
Do not shop by maximum torque alone. Torque figures are often measured under conditions that do not reflect masonry drilling, where bit quality, impact rate, wall material, and pressure matter. A comfortable grip, manageable weight, and easy-to-use mode selector matter more for a few holes at a time. If you already have a regular drill, renting a rotary hammer for one demanding concrete job may cost less than buying another tool.
Pick the right bit and anchor
Use a masonry bit with a carbide tip, sized to the anchor instructions. A common plastic wall plug may call for a 1/4-inch hole, but do not assume: check the package. The hole must be deep enough for the plug and fastener, with a little extra room for dust. A depth stop or a piece of tape on the bit helps prevent drilling too deep.
Match the anchor to the wall and load. Plastic plugs are fine for light loads in sound brick or block when installed as directed. For heavier loads, use a suitable masonry screw, sleeve anchor, or other rated fastener. Hollow block behaves differently from solid brick, and weak or crumbly mortar may not hold an anchor securely. Do not place a critical load—such as a heavy handrail—on an anchor chosen only because it fits the drill bit.
Drill without damaging the wall
Check for wiring and plumbing before drilling, particularly near outlets, switches, taps, and radiators. Mark the hole, wear eye protection, and use a dust mask; masonry dust is hazardous to breathe. Hold the drill square to the wall and start slowly so the bit does not skate. Engage hammer mode for masonry, apply steady pressure, and let the bit cut rather than forcing it. Pull the bit out occasionally to clear dust, especially in a deep hole.
If the bit stops advancing, do not lean harder on the drill. Dust may be packed in the hole, the bit may be dull, or the material may be harder than the tool can manage. Clear the hole, check the bit, and try again. Persistent slow progress, a hot drill, or a battery that drains quickly are signs to pause rather than keep pushing; overheating can shorten tool and battery life. In hard concrete, a rotary hammer is usually faster and puts less strain on a standard hammer drill.
When the cheaper option is enough
If you own a corded drill and need only one small hole in soft brick, a quality masonry bit may be enough. Test carefully and stop if the drill stalls or the wall begins to crumble. For occasional use, borrowing or renting a hammer drill can also beat buying a new battery platform. But for regular shelf, curtain, or fixture installation in masonry, a cordless hammer drill gives you a useful combination of drilling, screwdriving, and portability without the bulk of a rotary hammer.