Published August 11, 2026 · Reviewed by the Unbiased Advice & Insights editorial team · How we research and score
If you are new to power tools, the difference between an impact driver and a drill can be confusing. Both are handheld, battery powered, and often come in the same color. But they are designed for different jobs. Our editorial team compared specifications, buyer feedback and key decision factors to clarify the functional differences. This guide explains how each tool works, when to use each, and offers practical examples for your next project.
What's the Difference?
The core difference lies in how they deliver power. A drill uses constant rotational force, or torque, to spin a chuck that holds a bit. You can adjust the speed and often use a clutch to stop the rotation at a set torque. This makes drills ideal for boring holes and driving screws with precision, especially in delicate materials.
An impact driver, on the other hand, uses a combination of rotation and concussive blows. Inside the tool, a hammer mechanism strikes an anvil, creating rapid bursts of rotational force. This impact action delivers much higher torque than a drill of the same size. The result is that an impact driver can drive long screws, lag bolts, and fasteners into dense wood or metal with less effort and less kickback.
Another key difference is the chuck. Drills have a three-jaw chuck that accepts round bits, while impact drivers use a quick release hex chuck that accepts 1/4 inch hex shank bits. This means you cannot use standard round shank drill bits in an impact driver without an adapter.
When to Use Each
Choosing between an impact driver and a drill depends on the task. For drilling holes, a drill is the better choice. The constant rotation and adjustable clutch give you control to avoid splintering wood or overdriving screws. For driving screws, a drill can work, but it may struggle with longer screws or hard materials because it lacks the impact mechanism.
An impact driver excels at driving fasteners. The impact action pushes the screw forward while turning, which reduces cam out and stripping. It is also excellent for removing rusted or stuck bolts. For drilling into masonry or concrete, a hammer drill is the proper tool, but an impact driver with a masonry bit can handle small holes in softer materials.
For everyday DIY tasks like assembling furniture, hanging shelves, or building a deck, an impact driver is often the go to tool. For tasks that require precision, like drilling pilot holes or installing hinges, a drill is preferable.
Practical Examples
Let us look at some common scenarios to illustrate when to use each tool.
Drilling a Pilot Hole
- Use a drill with a twist bit slightly smaller than your screw.
- Mark the spot and drill straight in with moderate speed.
- Use the clutch to prevent drilling too deep.
This task is best with a drill because it gives you control and prevents splitting.
Driving a Long Deck Screw
- Use an impact driver with a Phillips or square drive bit.
- Place the screw on the bit and start slowly.
- The impact action will drive the screw smoothly without stripping.
An impact driver makes this task effortless, while a drill might stall or strip the head.
Removing a Stuck Bolt
- Attach a socket adapter to your impact driver.
- Select the reverse mode.
- Apply pressure and let the impacts break the bolt free.
This is a job where an impact driver shines due to its high torque bursts.
Comparison Table
| Feature | Drill | Impact Driver |
|---|---|---|
| Primary function | Drilling holes, driving screws | Driving fasteners, tightening bolts |
| Torque delivery | Constant | Intermittent impacts |
| Chuck type | Three-jaw, adjustable | Quick release hex |
| Speed control | Variable speed with clutch | Variable speed, no clutch |
| Best for | Clean holes, precision work | Long screws, heavy driving |
| Drawback | Can strip screws if not careful | Noisy, less precise for drilling |
Frequently Asked Questions
Can an impact driver be used as a drill?
Yes, but with limitations. Impact drivers can drill holes in wood and softer materials when fitted with a hex shank drill bit, but they lack the precision and variable speed control of a drill. For masonry or large holes, a drill is better.
Why does an impact driver have more torque than a drill?
Impact drivers deliver rotational force in rapid bursts, which creates a hammering effect. This allows them to generate higher peak torque for driving long screws or lag bolts, while drills provide constant torque for drilling.
Do I need both an impact driver and a drill?
For most DIYers, having both is ideal because they complement each other. A drill handles clean holes and light driving, while an impact driver excels at heavy driving and removing stubborn fasteners. If you only do light tasks, a drill may suffice.
When you are ready to buy, consider a combo kit that includes both tools. Brands like DeWalt, Milwaukee, and Makita offer reliable options. Always check the current price on Amazon for the best deals.
More guides
See our full buying guides hub and our research and scoring methodology. We compared specifications and verified owner feedback; we did not physically test every product.