How do you use it as a drill?

By using the DW0521 Keyless Chuck, you can transform this impact driver into a drill.

How long can I expect the battery to last on a single charge for HVAC service work? Just starting out

It lasts quite a while. If you are driving screws for sheet metal, will not last long, but you should get at least 2 hours of steady use.

What is the accesory required to use the DCF809 drill driver?

Thank you for your question! If you meant what other items do you need to operate this drill, you will need to purchase a battery and charger separately. Both are sold at our storefront SunshineSeller789. The most commonly purchased battery for this drill is the DCB201 and the charger is the DCB107. We do have chargers that work faster and batteries with higher Ah capacities if you prefer to upgrade. If you meant what type of bits does it take, it is a "Drop and load chuck which accepts 1 in. tips". Hope that information helps you! Great question!

What is the break away torque

Hi, Thanks for contacting DEWALT. Maximum Torque ‎1700 Inch Pounds

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Description

🔧 Compact power, bright precision — own the tight spots like a pro!

PRECISION CONTROL - Variable speed trigger lets you dial in exact power for delicate or demanding applications—no overdriving, no guesswork.
COMPACT POWERHOUSE - Fits effortlessly into tight spots with a sleek 5.1-inch design, perfect for precision work where space is premium.
BRUSHLESS EFFICIENCY - DEWALT’s brushless motor maximizes runtime and durability, keeping you productive longer without overheating.
TORQUE THAT COMMANDS - Delivers a robust 1700 in-lbs of torque, powering through most fastening tasks with ease and speed.
ILLUMINATE YOUR WORKFLOW - Triple LED lights brighten shadowy work areas, ensuring you never miss a detail even in the dimmest conditions.

The DEWALT ATOMIC 20V MAX* Impact Driver (DCF809B) is a cordless, brushless tool engineered for professionals who demand power and precision in compact form. Measuring just 5.1 inches long, it delivers up to 1700 in-lbs of torque with a variable speed trigger for ultimate control. Equipped with three LEDs for enhanced visibility and an ergonomic design for comfort, this impact driver is built to excel in tight, dimly lit spaces. Battery and charger sold separately.

Specifications

Brand	DEWALT
Power Source	Battery Powered
Maximum Rotational Speed	9200 rpw
Voltage	20 Volts
Amperage	16 Amps
Maximum Chuck Size	6.35 Millimeters
Color	Multi
Included Components	(1) DCF809 20V MAX* Brushless Compact 1/4 in. Impact Driver; (1) Belt Clip
Special Feature	Variable Speed
Product Dimensions	8"L x 6"W x 2.5"H
Material	Blend
Maximum Torque	1700 Inch Pounds
Number of Speeds	3
Item Weight	2.31 Pounds
Maximum Power	300 Watts
Item Torque	1825 Inch Pounds
Drill Type	Impact Driver
Battery Capacity	1.3 Amp Hours
Is Electric	Yes
UPC	885911571173
Global Trade Identification Number	00885911571173
Drilling Capacity Wood	5.35 Millimeters
Manufacturer	DEWALT
Drilling Capacity Metal	0.24 Inches
Part Number	DCF809B
Item Weight	2.31 pounds
Item model number	DCF809B
Is Discontinued By Manufacturer	No
Size	One Size
Style	Classic
Finish	Brushed
Pattern	Solid
Shape	Rectangular
Item Package Quantity	1
Special Features	Variable Speed
Batteries Included?	No
Batteries Required?	Yes
Warranty Description	no

Reviews

C**E

Perfect deal

It’s nice to find deals like this. Great price for a great product. I have plenty of batteries so it’s always a plus to be able to buy the tool only.

17.09.2025

C**T

Small and mighty

I just used this bad boy to replace an alternator in a 2009 Murano in 5 hours and I wouldn't have achieved that without this (iykyk). We have all DeWalt tools in our garage so it's nice to have a good impact. Great torque, lightweight, compact, and mighty. CAn't go wrong.

21.08.2025

S**S

The right tools for the right jobs

Great tools love it I used only Dewalt tools love the quality and reliability

6.09.2025

A**R

Great Tool

It works well very pleased with it.

25.08.2025

K**R

It's worth it.

Just exactly what it should be. Looked good and works great. It is a lower RPM than I expected and lower than my others.

10.09.2025

A**F

Amazing but

Like always. Amazing product.But with same price can get with the power switch

6.09.2025

I**C

Awesome product

Great product

20.09.2025

R**R

Excellent tool!

Excellent impact driver. Using a commercially for two years and never had a problem. It takes a lot of abuse.

20.08.2025

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