DeWalt DCF850B ATOMIC™ 20V MAX Brushless Cordless 1/4-Inch 3-Speed Impact Driver – Ultra-Compact 3.97" Design with 1,825 in-lbs Torque – Tool Only*

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SKU:
DWTDCF850B
UPC:
885911758215
MPN:
DCF850B
Availability:
Ready to ship
Weight:
7.0000 LBS
On Sale
  • DeWalt DCF850B Atomic 20V MAX 1/4-inch brushless cordless 3-speed impact driver tool only front angled product image.
  • DeWalt DCF850B Atomic 20V MAX brushless cordless 3-speed impact driver driving deck screw in wood framing application.
  • Side profile of DeWalt DCF850B Atomic 20V MAX brushless cordless 1/4-inch impact driver tool only.
MSRP: $219.00
Now: $128.00
Was: $219.00
— You save $91.00
  • ✔️ Maneuver with Ease: Optimized ergonomics for cabinetry & framing. ✔️ 3-LED Work Light: Superior visibility in dark, cramped corners. ✔️ Fast Driving: 3,250 RPM for high-productivity fastening. ✔️ Bare Tool.
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Description

DeWalt DCF850B Atomic 20V MAX* 1/4" Brushless Cordless 3-Speed Impact Driver (Tool Only)

Size Matters: The Most Compact High-Torque Impact Driver in its Class

The DeWalt DCF850B ATOMIC™ 20V MAX 1/4-Inch Impact Driver* proves that you don't have to sacrifice power for size. Engineered for the professional who frequently works in cramped cabinets, between studs, or in tight automotive engine bays, this tool features an incredibly short 3.97-inch head length. Despite its "Atomic" footprint, it punches well above its weight class, delivering up to 1,825 in-lbs of torque to handle large fasteners with ease.

Equipped with a high-efficiency Brushless motor, the DCF850B offers 3-speed settings for ultimate versatility. Mode 1 features Precision Drive™ technology, designed to protect your work surface and fasteners by providing extra control during delicate applications. The 3-LED work light ring provides a clear "halo" of light, eliminating shadows so you can see exactly what you’re doing in dark corners.

Why the DeWalt DCF850B ATOMIC is a Game-Changer:

  • Ultra-Compact Layout: At under 4 inches long, this tool fits into spaces that traditional impact drivers simply cannot reach.
  • High-Performance Brushless Motor: Delivers 1,825 in-lbs of torque and 3,250 RPM for professional-grade driving speed.
  • 3-Speed Functionality: Switch between Mode 1 (Precision Drive), Mode 2 (Standard), and Mode 3 (High Speed) to match your material.
  • Precision Drive™ Mode: Adds a layer of control for small screws, preventing over-driving and material damage.
  • Pro-Grade Visibility: The 3-LED on-board work light ensures you aren't working in the dark when tucked inside cabinets or crawlspaces.

Specifications

Feature Specification
Series ATOMIC™ Compact Series
Voltage 20V MAX*
Max Torque 1,825 in-lbs
Head Length 3.97 Inches
No Load Speed 0 – 1,000 / 2,800 / 3,250 RPM
Impacts Per Minute 3,800 IPM
Drive Size 1/4" Hex Quick Release
Motor Type Brushless
Weight 2.1 lbs (Bare Tool)

Frequently Asked Questions

+ Is the ATOMIC series less powerful than the XR series?
No. While the ATOMIC™ series focuses on compact size, the DCF850B actually matches the torque output of many XR models (1,825 in-lbs). It is designed to give you pro-level power in a significantly smaller frame.
+ Does this tool come with a belt hook?
Yes. The DCF850B includes a removable belt hook that can be mounted on either side of the tool, making it easy to carry while climbing ladders or moving around the jobsite.
+ Can I use a 5.0Ah or FLEXVOLT battery with this small tool?
Absolutely. It is fully compatible with all DeWalt 20V MAX* and 60V FLEXVOLT® batteries. However, most users prefer the POWERSTACK™ or 2.0Ah compact batteries to maintain the tool's lightweight, compact advantage.
+ What is the advantage of the 3-LED ring?
Unlike tools with a single light at the base, the 3-LED ring surrounding the chuck eliminates shadows. This is critical when working in tight spots where your hand or the tool body would normally block the light.
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Product Specifications

category_bullets:
• Ultra-Compact: Under 4" length to fit in the tightest spaces. • 1825 in-lb Torque: Full-size power in an Atomic-sized tool. • 3-Speed Switch: Precision control for delicate or heavy tasks. • Brushless Motor.
selling_points:
✔️ Maneuver with Ease: Optimized ergonomics for cabinetry & framing. ✔️ 3-LED Work Light: Superior visibility in dark, cramped corners. ✔️ Fast Driving: 3,250 RPM for high-productivity fastening. ✔️ Bare Tool.
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Related Products

On Sale
DeWalt DCF845B 20V MAX XR cordless 1/4-inch drive 3-speed impact driver tool only front product image. DeWalt DCF845B 20V MAX XR impact driver with LED ring lights, 3-speed selector switch, and quick-connect hex chuck.
Quick view

  • • 1825 in-lb Torque: Heavy-duty power for large diameter screws. • 3-Speed Switch: Precision control for various applications. • Brushless Motor: Maximize runtime and tool life. • 3-LED Light: Eliminates shadows.
DeWalt DCF845B 20V MAX XR® Brushless Cordless 1/4-Inch 3-Speed Impact Driver – 1825 in-lbs High-Torque Fastener – Tool Only*

DeWalt

MSRP: $219.00
Now: $128.00
Was: $219.00
Dewalt DCF845B 20V MAX XR 1/4″ Drive 3-Speed Impact Driver – Tool Only Elite Speed. Surgical Control. Industrial Strength. The DeWalt DCF845B 20V MAX XR® 1/4-Inch Impact Driver* represents the next...