How to Drill Into Concrete | A Step-by-Step Guide

Drilling into concrete feels like a gamble until you know the one secret: a standard drill spinning a regular twist bit won’t cut it. The concrete laughs at it, the bit overheats, and you’re left with a shallow divot and a sore wrist.

What You Need Before You Start

Gather these before you mark a single spot. Home Depot and Lowe’s both list the same core kit, and none of it is exotic.

• Hammer drill or rotary hammer—a standard drill won’t produce the percussive action concrete needs.
• Carbide masonry drill bit sized to match your anchor or fastener. Ordinary twist bits are for wood and metal, not concrete.
• Depth stop (or masking tape as a visual marker) to control hole depth.
• Eye protection, plus a dust mask or respirator and gloves—concrete dust and flying debris are the real hazards here.
• A shop vacuum or compressed air to clear the hole before you set the anchor.

If you’re drilling near electrical outlets or plumbing, take a minute to check for hidden wires or pipes. One guide recommends scanning for hidden utilities before you start, and it’s the kind of step that saves a very bad afternoon.

How Do You Actually Drill the Hole?

Mark the spot, set your depth stop, and let the tool do the work—pushing harder just breaks bits. Here’s the order that works, pulled together from Home Depot and Lowe’s instructions.

1. Mark the hole location with a pencil or chalk.
2. No depth stop? Wrap a piece of masking tape around the bit as a visual marker.
3. Start with a small pilot hole. Several guides recommend a smaller guide bit first, then widening to the final size. It keeps the big bit from wandering.
4. Start at the lowest speed and hold the drill perpendicular—a 90-degree angle to the surface. Home Depot specifically calls for starting slow and keeping steady pressure.
5. Pull the bit out periodically to clear concrete dust. This keeps the bit cutting and stops it from binding.
6. Do not force the drill. Excessive pressure overheats or breaks the bit and cuts your control. Let the hammer action do the work.

If you hit a tough spot or suspect rebar, stop and reassess. Forcing through rebar ruins bits fast, and if you’re unsure what’s behind the concrete, it’s worth checking before continuing.

Common Mistakes That Ruin the Hole

The mistakes are predictable, and they’re the same ones in nearly every guide. Skip them and your anchor will seat properly the first time.

• Using the wrong bit—a twist bit on concrete is a wasted effort.
• Starting too fast—high speed makes the bit skate across the surface.
• Pushing too hard—pressure overheats the bit and reduces control.
• Drilling at an angle—it makes the hole wander and the anchor sit crooked.
• Skipping dust removal—a dusty hole means the anchor won’t seat fully.
• Not verifying depth—a shallow hole leaves the anchor proud of the surface.

Each one is easy to avoid once you know it’s a trap. The dust removal step especially matters—clean the hole out completely before inserting the anchor or screw, because debris stops the fastener from gripping properly.

Finishing the Job: Clean and Set the Anchor

Once the hole is drilled, vacuum or blow out all the dust, then insert the anchor. That’s the whole finishing sequence.

Concrete anchors grip by friction, and they won’t grip a dusty hole. Use a HEPA-filtered shop vacuum or compressed air to clear the debris completely, then set the anchor or drive the screw. If you want the right tool for the job before you start, the best concrete drill for home projects guide covers the models that make this work easier.