How to Use a Hammer Drill on Concrete | Carbide Bit, Steady Pressure

Drill concrete by setting the hammer drill to hammer mode with a carbide masonry bit and letting the tool do the work.

Drilling into concrete stalls most DIY projects because a standard drill just spins and polishes the surface. A hammer drill solves that with a rapid pulsing action that chips the concrete away. The right technique matters as much as the tool: hammer mode, a carbide bit, low speed, and steady pressure produce clean holes without burning up the bit or cracking the slab. This guide walks through the exact setup, the drilling sequence, and the common mistakes that ruin the job.

The Right Setup: Hammer Mode and a Carbide Bit

Your hammer drill has a mode selector, usually near the chuck. Rotary-only is for wood or steel, and hammer-only with no rotation is for chipping, not drilling.

The bit is the other half of the equation. Manufacturers specify a tungsten-carbide tipped bit for concrete, and home improvement guides call it a carbide masonry drill bit. A standard wood or metal bit will dull almost immediately and generate heat that can damage the tool. Use a masonry bit that matches the hole size you need.

• Set the mode lever to rotation with hammering before touching the concrete.
• Fit a carbide or tungsten-carbide tipped masonry bit sized to your anchor or fastener.
• Secure the bit tightly in the chuck so it cannot slip under the hammering action.

The Drilling Technique That Works

Start by marking the spot. A center punch or nailset creates a small indent that keeps the bit from walking across the surface. Position the bit at that mark, grip the drill firmly with both hands, and brace with an auxiliary handle if your model has one.

Pull the trigger and start at the lowest speed. Let the drill establish the hole before increasing speed. Keep the bit perpendicular to the surface, feet shoulder-width apart, and apply light, steady pressure — do not force the tool. The hammer action does the cutting; leaning on the drill only wears out the bit and overheats the motor.

Concrete dust clogs the flutes of the bit quickly. If the drill stops making progress, run the tool at idle and partially withdraw the bit to clear the chips, then resume. Pulling the bit out periodically also gives you a chance to check depth.

Set your depth before you start. Use the drill’s depth stop if it has one, or wrap a piece of tape around the bit at the depth you want. Stop when the tape reaches the surface. Ease off the pressure as you approach the far side of a slab to avoid blowing out the back edge.

Safety and Cleanup You Should Not Skip

Hammer drilling throws dust, noise, and vibration. At minimum, wear hearing protection, a dust mask, and safety glasses. A face shield is recommended when drilling overhead, and a shop vacuum held near the drill point catches most of the dust before it reaches your lungs.

Before plugging in, confirm the switch is off, secure the material with a clamp, and make any adjustments with the battery removed or the tool unplugged. Hold the drill by its insulated gripping surfaces, let the motor reach full speed before the bit touches concrete, and never wear loose clothing or gloves near a spinning chuck.

For serious dust control, use a shroud or cowling with a tool-mounted HEPA filtered dust collector, or a dust extractor rated M-Class or H-Class. The tool’s manual may also specify minimum airflow for the vacuum you connect.

Finish the job by clearing the hole completely. Dust left in the hole reduces anchor holding capacity, so vacuum or blow out the debris before installing a fastener or anchor.

Standard Hammer Drill vs. SDS Rotary Hammer

Know the limits of your tool.

If you are drilling just a few anchor holes for a shelf or a TV mount, a quality corded hammer drill gets the job done. If you are planning repeated work in poured concrete, the SDS platform saves time and tool wear. Choosing the right tool for the job prevents frustration and keeps the work safe.

For a tested roundup of corded models that handle concrete work, see our best corded hammer drill for concrete recommendations.

Common mistakes ruin most concrete drilling jobs: starting at full speed, drilling without a masonry bit, forcing the tool, and never clearing dust. Avoid those four, and a hammer drill makes concrete feel closer to wood than you expect.