DEWALT DCD999T1 FLEXVOLT ADVANTAGE 20V MAX Hammer Drill
- Maximum Chuck Size: 13 Millimeters
- Drill Type: Hammer Drill
- Power Source: Battery
- Maximum Rotational Speed: 20 Feet Per Second
Last refreshed Aug 4, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.
A dependable pick if you are already on or want to join the DEWALT 20V MAX platform, since the mismatched speed and voltage figures here do not affect the tool itself.
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ASIN: B08J8G9MWJModel: DCD999T1Category: Drills
Overview
DEWALT's DCD999T1 drill weighs 3.5 pounds and runs on the brand's 20V MAX cordless platform, with a T1 kit designation that usually pairs the tool with one battery and charger.
DCD-series DEWALT drills run on the 20V MAX cordless platform, and the T1 suffix in DEWALT's naming usually denotes a kit bundled with one battery. Some figures in the source listing, including a voltage value and a speed rated in feet per second, do not match how cordless drills are normally specified, so they are left out here rather than reported as fact.
- DEWALT DCD999T1 cordless drill
- 3.5 pound tool weight
- 20V MAX cordless platform
- T1 kit designation
Who it's for
DIYers and tradespeople already invested in DEWALT's 20V MAX platform will get the most use from this drill. It is less relevant if you need corded-tool torque for heavy continuous drilling.
Pros and cons
- Comfortable 3.5 pound handheld weight
- Part of the widely stocked DEWALT 20V MAX platform
- Speed and voltage figures in the listing are inconsistent and not usable
- Battery capacity is not confirmed
Performance notes
Handheld comfort is where the 3.5 pound weight helps most, keeping the drill manageable through a full work session. The listing's amperage and speed figures are ambiguous for a cordless drill, since amperage is more typically a battery spec and the speed unit given does not match drill RPM conventions, so actual drilling speed and battery run time are not confirmed here.
Where it stands among drills
- 6000 mAh battery capacity: longer than 93% of the drills we list.
From the specs of the 318 drills we list; not a test result.
Specifications
| Brand | DeWALT |
|---|---|
| Model | DCD999T1 |
| Dimensions & fit | |
| Maximum Chuck Size | 13 Millimeters |
| Item Weight | 3.5 poundshigher than 56% of 238 drills |
| Item Dimensions L X W X H | 14.3 × 10.6 × 5.8 inches |
| Capacity & performance | |
| Maximum Rotational Speed | 20 Feet Per Second |
| Speed | 2000 RPM |
| Drilling Capacity Metal | 0.5 inches |
| Drilling Capacity Wood | 0.5 incheslower than 51% of 154 drills |
| Number Of Speeds | 3 |
| Battery Capacity | 6000 mAhhigher than 93% of 74 drills |
| Power & efficiency | |
| Power Source | Battery |
| Maximum Power | 300 wattslower than 71% of 155 drills |
| Amperage | 6 ampshigher than 50% of 166 drills |
| Battery Type | FLEXVOLT |
| Voltage | 120 voltshigher than 85% of 255 drills |
| Construction & materials | |
| Material Type | Blend |
| Color | Multi |
| Compatibility & installation | |
| Compatible Devices | DEWALT 20V MAX* batteries, FLEXVOLT batteries |
| Included components | |
| Unit Count | 1 |
| Included Components | (1) DCD999B 20V MAX* 1/2 In. Brushless Cordless Hammer Drill/Driver With FLEXVOLT® ADVANTAGE™; (1) 360° Side Handle; (1) DCB606 20V/60V MAX* FLEXVOLT® Battery; (1) DCB1106 6 Amp Charger; (1) Belt Hook; (1) Kit Bag |
| Other details | |
| Drill Type | Hammer Drill |
| Is Electric | Yes |
| Item Type Name | Hammer Drill |
| Additional Features | Variable Speed |
Closest rivals on specs
DongCheng DZJ05-13 Hammer Drill 6A- Maximum Power 300 vs 710 watts (-58%)
- Item Weight 3.5 vs 2 pounds (+75%)
SKIL DP9505-00 5-Speed Benchtop Drill Press 10"- Maximum Power 300 vs 744 watts (-60%)
Frequently asked questions
What battery platform does the DCD999T1 use?
It is part of DEWALT's 20V MAX cordless line.
How much does the DCD999T1 weigh?
3.5 pounds.
Does the T1 kit include a battery?
DEWALT's T1 suffix typically indicates a kit with one battery and charger, though this should be confirmed on the product listing.