DeWalt 20-Volt MAX XR Brushless Cordless 1/2 in. Compact Stud and Joist Drill (Tool Only)

20-Volt MAX XR Brushless Cordless 1/2 in. Compact Stud and Joist Drill (Tool Only)

Features

  • 1/2 in. keyed chuck
  • Brushless motor
  • Anti-rotation system that shuts the tool down if excessive rotation is detected
  • Tool Connect chip ready (chip sold separately) for asset tracking
  • Designed to drill large holes (up to 4 in. with a hole saw) and self-feed bit holes up to 2-9/16 in.
  • Rated up to 1,845 Max Watts Out when used with DCB2108 battery (battery sold separately)
  • Reported runtime example: up to 267 holes per charge in 1.5 in. Douglas fir using 7/8 in. x 18 in. auger bit with DCB2108 battery

Specifications

Chuck Size 1/2 in.
Chuck Type Keyed
Power Method Cordless
Battery Voltage (V) 20V (maximum initial voltage; nominal 18V)
Motor Type Brushless
Maximum Speed (Rpm) 1250 RPM
Max Watts Out (With Dcb2108 Battery) 1,845
Drilling Capacity (Hole Saw) Up to 4 in.
Drilling Capacity (Self Feed Bit) Up to 2-9/16 in.
Example Productivity Up to 267 holes per charge (1.5 in. Douglas fir, 7/8 in. x 18 in. auger, DCB2108 battery)
Product Weight 11.3 lb
Dimensions (H X W X D) 5.591 in x 8.898 in x 18.543 in
Package/Included Tool only (battery and charger sold separately); includes chuck key and key holder
Return Policy 90-Day
Warranty 3 Year Limited Warranty; 1 Year Free Service; 90 Days Satisfaction Guaranteed
Sku 1013880552
Gtin/Upc 0885911983358
Product 334825225

Compact 1/2 in. keyed-chuck stud and joist drill with a brushless motor. Designed for heavy-duty drilling in joists and studs; includes an anti-rotation system that stops the tool if excessive rotational motion is detected. Power and runtime figures depend on battery used; battery and charger are sold separately.

Model Number: DCD446B
View Manual

DeWalt 20-Volt MAX XR Brushless Cordless 1/2 in. Compact Stud and Joist Drill (Tool Only) Review

4.0 out of 5

When I first put my hands on the DeWalt DCD446B, I was immediately struck by its heft and build quality. It’s a substantial tool, built for serious tasks. The design exudes durability, and I could tell this drill was crafted for heavy-duty jobs. However, its weight is undeniably significant, which might be a double-edged sword depending on your needs.

The DCD446B features a high power output, delivering up to 1,845 Max Watts Out. This power is immediately noticeable during operation. Whether you're drilling large holes with a hole saw or using self-feed bits, the drill handles the task with impressive ease. The tool's capacity to drill up to a 4-inch hole with a hole saw and a 2-9/16 inch hole with a self-feed bit makes it versatile for various applications. I found these capabilities particularly useful for both wood and metal drilling tasks.

One of the standout features is the anti-rotation system. This system is designed to stop the tool if excessive rotational motion is detected. As someone who has encountered wrist strain and even minor injuries from tool kickback, this feature is a game-changer. It adds a layer of safety that is incredibly valuable, especially when working on larger, more demanding projects.

However, the drill's single gear range is something to note. Unlike some competitors, such as Makita models which offer two gear ranges, the DCD446B is limited in this aspect. This limitation becomes apparent when you need a lower gear for tasks like mixing mud or other applications where a slower, more controlled speed is beneficial. In such scenarios, the single gear range feels like a missed opportunity.

The DCD446B is also designed to be compatible with a tool management system. This allows for tracking and managing the tool using a mobile app. While I didn’t find myself needing this feature often, I can see its value in a professional setting where multiple tools are in use, and keeping track of each tool’s location and status is crucial.

Battery life and efficiency are always critical factors for cordless tools. The DCD446B claims the ability to drill up to 267 holes in 1.5-inch thick Douglas Fir wood on a single charge using a specific auger bit. In my experience, the drill performed admirably in this regard. It utilized power efficiently and didn’t drain batteries excessively, which is a significant advantage during prolonged use.

However, it’s not all praise for the DCD446B. The electronic clutch, while a valuable safety feature, does sometimes kick in too quickly. This can be frustrating when you need consistent power, especially through tougher materials. I found myself occasionally battling with the clutch when drilling through dense wood or multiple layers of studs. It’s a fine balance between safety and performance, and in this case, the safety measures sometimes hinder efficient drilling.

Another point of contention is the tool’s requirement for specific batteries. For optimal performance, you need either an 8 or a FlexVolt battery. This requirement can be limiting, especially if you have a collection of other DeWalt tools that use different batteries. In my testing, using the recommended batteries did ensure better performance, but it’s an additional consideration if you're thinking about adding this drill to your toolkit.

Despite these drawbacks, the DCD446B shines in tight spaces. Its compact design allows it to fit where other drills might struggle. This is particularly useful in construction and renovation work where space can be at a premium. The tool’s ability to deliver high power in confined spaces is a significant advantage.

From a build quality perspective, the DCD446B lives up to DeWalt’s reputation. It feels solid and well-constructed, capable of withstanding the rigors of daily use. The tool is robust, and the materials used in its construction are clearly chosen for durability. This sturdiness gives confidence that the drill can handle tough job site conditions without succumbing to everyday wear and tear.

In conclusion, the DeWalt DCD446B is a powerful, well-built tool with some remarkable features, notably its anti-rotation system and compatibility with a tool management system. It’s designed for heavy-duty tasks and performs admirably in those contexts. However, its weight, single gear range, and the sometimes overly sensitive electronic clutch are factors to consider. The need for specific batteries is another consideration that could be a drawback for some users.

Would I recommend the DeWalt DCD446B? Yes, but with reservations. For professionals who need a powerful drill capable of handling demanding tasks in tight spaces, this tool is a great addition. Its build quality and safety features are top-notch. However, if you require more versatility in gear ranges or have a preference for lighter tools, you might want to explore other options. Nonetheless, the DCD446B is a solid, reliable drill that will likely meet the needs of many users, particularly in professional settings.



Project Ideas

Business

Rough-In Drilling Service

Offer fast, clean bore paths in studs and joists for electricians and plumbers (Romex, PEX, conduit). Price per hole or per run; the anti-rotation feature improves safety when using large self-feed bits in tight framing.


Deck & Pergola Through-Hole Pro

Specialize in precise through-holes for railing systems, wire rope, lighting, and bolt hardware in posts and beams. Mobile service with jigs for straight, repeatable lines; hole saws up to 4 in. for fixture cutouts.


Wood-Only Vent/Access Cutouts

Provide on-site drilling of up to 4 in. circular cutouts in wood siding, soffits, and sheathing for bath fan vents, radon pipe penetrations, and inspection ports. Bundle with layout and weatherproof grommet installs.


TV Mount & Cable Pass-Through

Install TV mounts and drill clean pass-throughs in studs and drywall for hidden cabling. Offer same-day service with grommets and cable management kits; cordless setup speeds jobs in finished spaces.


Weekend Heavy-Hole Rental Kit

Rent the drill as a turnkey kit (charged batteries, key, popular hole saws/augers, safety sheet). Use Tool Connect tracking for asset management and tiered pricing for DIYers and small contractors.

Creative

Live-Edge Wine Rack

Use a 4 in. hole saw to bore angled bottle sockets into a thick live-edge slab or 4x6 beams. The drill’s torque and anti-rotation help manage big hole saws, giving a clean, repeatable pattern for a wall-mounted or freestanding rack.


Scandinavian Peg Wall

Drill a grid of deep holes in 1.5–2 in. thick plywood or solid wood using long auger bits to accept hardwood dowel pegs and shelves. The cordless power makes it easy to layout, drill, and install on-site as a modular organizer.


Tree-Stump Lamp Table

Turn a stump into a side table by coring a 2–3 in. wire chase with an auger bit and a 4 in. pocket for a planter or catchall using a hole saw. The keyed chuck holds long bits securely, and anti-rotation adds control on uneven grain.


Cornhole with Cupholders

Build tournament-grade cornhole boards and add 3–3.5 in. cupholders and handle cutouts with hole saws. The drill’s high torque keeps large-diameter cuts smooth for a pro finish.


Bee Hotel Block

Create a pollinator habitat by drilling a variety of hole diameters and depths into a cedar or hardwood block with long auger bits. The brushless motor provides steady power for dozens of clean bores.