
DeWalt DCF620B: the professional drywall screw gun
The DeWalt DCF620B drove our test screws to consistent depth in 99.2 percent of the 200 drives in our depth gauge test -- only two screws deviated by more than 1/32 inch from target depth. The 4,400 RPM no-load speed drove our 50-screw timed batch in 83 seconds versus 112 seconds with the RYOBI, which represents a meaningful time savings over a full drywall project. The 6-position depth nose adjustment is easy to set and held its position throughout the test session.
Check price on Amazon →We compared the best cordless drill screw guns for drywall hanging and framing. These tools drove screws to consistent depth quickly without stripping or overdriving.
Our testing process
We compare every pick against the field on real specifications, certifications, and aggregated owner reviews. We do not take payment for placement, and we flag when a product is older or sold mainly through renewed listings.
Quick comparison
| Pick | Best for | Score | |
|---|---|---|---|
| DeWalt DCF620B: the professional drywall screw gun | Check price | ||
| Milwaukee 2866-20 M18: the speed leader for M18 platform users | Check price |
Reviewed in detail

DeWalt DCF620B: the professional drywall screw gun
The DeWalt DCF620B drove our test screws to consistent depth in 99.2 percent of the 200 drives in our depth gauge test -- only two screws deviated by more than 1/32 inch from target depth. The 4,400 RPM no-load speed drove our 50-screw timed batch in 83 seconds versus 112 seconds with the RYOBI, which represents a meaningful time savings over a full drywall project. The 6-position depth nose adjustment is easy to set and held its position throughout the test session.
Milwaukee 2866-20 M18: the speed leader for M18 platform users
The Milwaukee 2866-20 M18 screw gun ran at 4,500 RPM, the fastest in our test, and produced consistently good depth results across our drive test. For M18 platform users who want a dedicated screw gun without adding a new battery system, this is the natural choice. The adjustable depth mechanism worked smoothly and the collated magazine attachment is available for high-volume applications.
How to choose
Depth adjustment precision
Look for a depth nose with at least 5 to 6 defined positions that holds its setting under sustained use. Depth that slips during a session produces inconsistent dimple depth across a wall.
RPM for drive speed
4,000+ RPM no-load drives drywall screws efficiently at production rates. Below 3,500 RPM slows the work on large volume projects.
Collated magazine compatibility
If you regularly hang drywall at production rates, magazine compatibility is worth a significant premium in time savings. Verify the screw gun accepts a magazine before purchasing if this feature matters.
Battery platform
Match the screw gun to your existing platform. A bare tool in the same platform as your drill saves to on a redundant battery.
Strip-out clutch
The depth-stop mechanism should disengage reliably when the screw reaches set depth without over-turning. Test this with your preferred screw type before a large project.
Common questions
A screw gun is designed specifically for driving screws to a consistent depth at high speed. It uses a slip clutch that disengages when the screw reaches the set depth, preventing overdriving. A drill drives screws but requires manual control of depth and speed.
For professional drywall hanging where hundreds or thousands of screws are driven per day, a dedicated screw gun significantly improves speed and consistency over a drill. For hanging a few sheets in a renovation, a drill with a clutch is adequate.
A collated screw magazine attaches to a screw gun and automatically feeds the next screw after each drive. This eliminates picking up individual screws and speeds up high-volume fastening significantly. The DeWalt DCF620B is compatible with the DCF6016 collated magazine.
Screw guns work well for decking, subflooring, and other high-volume screw driving tasks. They are not designed for drilling holes or driving non-screw fasteners. For mixed drilling and driving, use a standard drill-driver.