Impact Driver vs Impact Drill | Which Tool Wins

An impact driver drives screws faster than a drill, while an impact drill (hammer drill) handles masonry work best.

Walking down the power tool aisle, the difference between an impact driver and an impact drill comes down to one job each tool does best. An impact driver focuses on driving fasteners with high torque, while a hammer drill combines rotation with a pounding action for concrete, brick, and stone. Whatever you call it — impact drill, impact driver, or hammer drill — picking the right one saves you time and frustration on every project. Here’s the honest breakdown of when each tool earns its place on your shelf.

What Is An Impact Driver?

An impact driver is a compact, lightweight tool built for one primary task: driving screws and lag bolts. It uses a 1/4-inch hex collet that accepts hex-shank bits only, and it delivers rapid concussive blows that push the fastener forward as it turns. That hammering action is what prevents cam-out and stripped screw heads — the tool does the muscle work so you don’t have to lean into it.

According to Black+Decker’s guide to impact drivers vs drills, the impact driver’s torque makes it ideal for long screws, dense hardwood, and heavy structural fastening. It is not designed to drill holes — that’s simply not its job.

What Is An Impact Drill (Hammer Drill)?

The term “impact drill” is informal shorthand that usually refers to one of two tools, and the difference matters. A standard drill/driver spins a chuck that accepts round-shank bits, making it the go-to for drilling holes in wood, plastic, and metal. A hammer drill adds a hammer mode that pounds the bit forward while it spins, letting it chew through masonry.

Home Depot’s impact driver vs drill comparison spells out the split: use a drill for holes, an impact driver for screws, and a hammer drill for concrete, brick, and stone. Lowe’s buying guide agrees on the same three-way division.

Which One Do You Actually Need?

The answer depends on the work. For driving screws into wood, an impact driver is typically faster and less likely to strip screw heads than a standard drill. For drilling holes, the drill/driver is the standard choice. For masonry, the hammer drill is the only right answer.

Most DIYers eventually own both: a drill for holes, an impact driver for fasteners. If you’re only buying one and your projects are mostly furniture assembly and basic repairs, start with a drill. If you’re building decks, framing, or driving long structural screws into lumber, buy the impact driver first.

When you’re ready to compare specific cordless models, our roundup of the best 18V impact drills breaks down the top performers by torque, battery life, and value.

Common Mistakes To Avoid

Calling an impact driver an “impact drill” is the most common mix-up — the two are not interchangeable, even though the names blur together in casual use. The impact driver drives fasteners; it does not drill holes. Likewise, don’t reach for a drill/driver when you need to sink heavy lag screws — the impact driver will do it faster and with less effort. And never try to drill into concrete with an impact driver; the hammer drill is the tool for masonry.