
DEWALT DCF809B
Score: 78/100
Milwaukee M12 3453-20
Score: 78/100Rankings

The DeWalt DCF809B is a compact brushless cordless impact driver designed for professional-grade performance in tight spaces. It delivers high torque in a small form factor, though the tool-only configuration requires additional investment in batteries. It is best suited for professionals working in confined areas where standard drivers cannot fit.

The Milwaukee M12 FUEL 3453-20 is a subcompact cordless impact driver designed for fastening applications in tight spaces, featuring a brushless motor and advanced battery management technology. It offers high torque and speed in a lightweight, portable package, making it highly suitable for confined spaces. It is best suited for compact workspace professionals needing access under cabinets or in confined areas, such as electricians and plumbers.
| Attribute | ![]() | ![]() |
|---|---|---|
1,700 in-lbbest | 1,500 in-lb | |
20 Vbest | 12 V | |
— | 3,600 RPMbest | |
— | 4,000 IPMbest | |
| ↓ lower better | 2 lbs | 1.6 lbsbest |
| ↓ lower better | 9 in | 5 inbest |
3 countbest | 3 countbest | |
0 yearsbest | — |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | ![]() | ![]() |
|---|---|---|
Performance(3) | ||
Maximum Torque (in-lb) | 1700 in-lb | 1500 in-lb |
Maximum Speed (RPM) (RPM) | Variable RPM | 3600 RPM |
Impacts Per Minute (IPM) (IPM) | Variable IPM | 4000 IPM |
Build & Design(2) | ||
Tool Weight (lbs) | 2.0 lbs | 1.6 lbs |
Tool Length (in) | 9.0 in | 5.0 in |
Power & Battery(1) | ||
Battery Voltage (V) | 20 V | 12 V |
Features(1) | ||
Chuck Type | 1/4-Inch Hex | 1/4-inch hex |
Controls(2) | ||
Speed Settings | 3-speed | 4-mode |
Trigger Type | Variable Speed | Variable speed |


Products in the top-left offer the best value (high score, low price).

Professional reviewers highlight that the DCF850 delivers specifications matching larger DeWalt models in a significantly more compact form factor. The brushless motor is tuned to provide the same torque and RPM performance as full-size competitors while maintaining the compact ATOMIC design philosophy.
Consumer reviews reflect strong user satisfaction with praise focused on accessibility in confined spaces, power-to-size ratio, precision and control, and build quality.

Professional reviewers and editors highlight the Milwaukee M12 FUEL 3453-20 as the fastest and most compact impact driver in its subcompact class. One reviewer noted a preference for the M12 over the larger M18 model due to its practicality and ease of carrying throughout the workday. The tool is praised for its brushless motor performance and compact design, making it highly suitable for confined spaces.
The search results indicate substantial user engagement with 56 customer questions and answers on Home Depot's product page. However, there are no detailed user reviews or specific customer feedback excerpts provided in the data to determine common praise or recurring complaints.
