Will the worklight turn on when the trigger is pulled if the light switch is at the off position? the manual says yes, but mine doesn't.

Yes and no ... there are three settings: 1) always on 2) always off and 3) on only when the trigger is pulled (plus ~10s delay turning off when trigger released).

Is this hammer drill compatible with the DCB201 battery?

Thank you for your question. It is compatible with the DCB201 battery. All DeWalt 20 volt Max batteries and chargers are interchangable with all DeWalt 20 volt max tools. We would suggest if you will be doing a longer project, you may want to consider upgrading to a 3 (DCB203) 4 (DCB204) or 5 (DCB205) AH for less charging time in-between work but the 201 has worked great for the small-medium projects I've done. It also charges fairly quickly (about 30-45 minutes in DCB107). Another added benefit of the DCB201 is that it's a lighter weight battery which doesn't add as much weight to the drill. Great question!

what is the power of this drill?

Thank you for your question. Here are some specs regarding the power of the DCD805b. High-speed transmission with variable trigger and 2 speed settings (0-650/0-2,000 rpm). Maximum Speed is 2000 RPM. Max torque is 796 in-lbs. Blows per Minute is34000 BPM. Hope these stats help you make your purchasing decision. Great question!

What type of drill bit will fit this to drill through concrete ?

The DEWALT SDS+ Hammer Bit, Rock Carbide, 1/2-Inch by 16-Inch by 18-Inch (DW5440) would work for this application.

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DEWALT 20V MAX Hammer Drill, 1/2", Cordless and Brushless, Compact with 2-Speed Setting, Bare Tool Only (DCD805B)

Product ID: 447395670

Details

Amperage
2 Amps
Brand
DEWALT
Maximum rotational speed
2000 RPM
Power source
Battery
Voltage
20 Volts

⚡40% more UWO power boost

💡70 Lumens adjustable LED light

🔩1/2-in metal ratcheting chuck

Description

🔨 Power meets precision — drill smarter, not harder!

COMPACT AGILE - 7-inch compact size, 1/2-inch shorter for effortless access in tight, hard-to-reach spaces.
PRECISION CONTROL - Dual-speed settings (0-650/0-2,000 RPM) with variable trigger for pro-level speed and accuracy.
SECURE BIT RETENTION - Durable 1/2-inch metal ratcheting chuck ensures your bits stay locked in during intense work.
POWER THROUGH PROJECTS - Up to 40% more UWO for unmatched drilling force with DEWALT POWERSTACK batteries (sold separately).
ILLUMINATE YOUR WORKSPACE - 3-position, 70 Lumens LED with spotlight mode and 20-minute auto shutoff for extended low-light tasks.

The DEWALT 20V MAX Hammer Drill (DCD805B) is a cordless, brushless 1/2-inch hammer drill designed for professionals who demand power and compactness. Featuring up to 40% more unit watts out (UWO) with compatible DEWALT POWERSTACK batteries, a high-speed 2-speed transmission, and a durable metal ratcheting chuck, it excels in tight spaces and tough materials. Its adjustable 70 Lumens LED light with multiple modes ensures visibility in dim environments, making it an essential tool for precision and efficiency on any jobsite.

Specifications

ASIN	B09YXQHR8M
ASIN	B09YXQHR8M
Batteries	1 AAA batteries required.
Batteries	1 AAA batteries required.
Batteries Included?	No
Batteries Required?	Yes
Battery Capacity	4 Amp Hours
Battery Cell Type	Lithium Ion
Best Sellers Rank	#118,991 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #609 in Power Drills
Color	Yellow
Customer Reviews	4.7 4.7 out of 5 stars (1,192)
Customer reviews	4.7 4.7 out of 5 stars (1,192)
Date First Available	11 June 2022
Date First Available	11 June 2022
Department	Unisex-Adult
Finish	Brushed
Included components	DCD805 20V MAX* XR® Brushless Cordless 1/2 in. Hammer Drill/Driver; Belt Hook
Is Discontinued By Manufacturer	No
Item Package Quantity	1
Item Weight	0.28 g
Item model number	DCD805B
Item model number	DCD805B
Manufacturer	DEWALT
Manufacturer	DEWALT
Material	Blend
Maximum Power	300 Watts
Part number	DCD805B
Pattern	Solid
Power source type	Battery Powered
Product Dimensions	18.59 x 9.5 x 23.5 cm; 0.28 g
Product Dimensions	18.59 x 9.5 x 23.5 cm; 0.28 g
Shape	Rectangular
Size	One Size
Special Features	Variable Speed
Speed	2000 RPM
Style	Classic
Torque	70 Newton Meters
Voltage	20 Volts
Wattage	300 watts
tech_spec_battery_description_toys	Battery included.

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