Battery-flexible high output
It runs on 20V MAX packs while a FLEXVOLT pack enables the documented higher-power comparison.
DeWalt
DCD999B 20V MAX XR Hammer Drill/Driver with FLEXVOLT Advantage
A three-speed brushless half-inch hammer drill that accepts 20V MAX batteries and unlocks DeWalt's higher-output claim with FLEXVOLT packs.
- Score
- 7.5/10
- Life
- 12 yrs
- Cover
- 3 yrs
Price history
$239.00
Please read How we make money.
33 BIFL enthusiasts own this
Product Overview
DeWalt's DCD999B is the tool-only FLEXVOLT Advantage hammer drill/driver. It works with ordinary 20V MAX packs, but DeWalt's up-to-42-percent-more-power claim specifically compares a DCB606 FLEXVOLT battery with a DCB205 5 Ah pack. The three-speed transmission reaches 2,000 rpm and 38,250 bpm, and t...
$239.00
In Stock
Tracked price history
Observed US merchant prices in USD.
Sign in to view tracked price history
See recorded merchant prices and changes over time.
Sign in to view price historySpecifications
- OverviewBrand
- DeWalt
- OverviewProduct category
- cordless-drills-and-drivers
- OverviewExpected lifespan
- 12 years
- Warranty & ServiceWarranty
- 36 months
- Additional detailsChuck
- 1/2 in nitro-carburized ratcheting metal
Why We Love It
The features that make this product stand out from the competition.
Three mechanical speeds
Three ranges provide a broader low-speed torque and high-speed drilling envelope than common two-speed drills.
Metal working interface
The nitro-carburized half-inch ratcheting chuck is designed for retention and wear resistance under heavy use.
Detailed Quality Score Breakdown
Core Performance
Primary Performance
9.1
cordless drills and drivers fit is backed by cordless drills and drivers materials and the current 9.1 score.
Feature Richness
8.1
Feature set stays practical for cordless drills and drivers without adding obvious replacement pressure.
Build Quality
8.3
cordless drills and drivers materials and reinforced construction signals support the 8.3 build score.
Reliability Score
7.7
12-year expected life, 3-year warranty coverage, and repair access support dependable use.
Longevity
Durability Rating
7.6
12-year expected life is supported by cordless drills and drivers materials and maintainable ownership signals.
Wear Resistance
7.1
cordless drills and drivers materials is scored against travel abrasion, handling wear, and expected cosmetic aging.
Component Replaceability
7.5
Repair and parts access keep worn components from defining the whole product lifespan.
Design Timelessness
7.0
Simple cordless drills and drivers design avoids trend-led replacement during the 12-year window.
Serviceability
Repairability
6.7
Repair access is included in the score; verify regional parts and service before buying.
Spare Parts Availability
7.3
DeWalt support and parts access inform the long-term service score.
Warranty Coverage
6.4
3-year warranty coverage backs the expected 12-year ownership window.
Service Network
8.1
DeWalt support plus regional service availability drive this score.
Value
Total Cost of Ownership
7.3
$239 over 12 years is helped by repair access and long service life.
Resale Value Retention
6.3
DeWalt reputation and long-life materials support resale confidence.
User Satisfaction
8.1
Owner reputation is reflected until WeBuyItForLife.com has more direct owner reviews.
Total Cost of Ownership Calculator
The sticker price is just the beginning. Use this tool to estimate the true long-term cost of this product. Adjust the sliders based on your expected usage and care to see how the value holds up over time.
Buy box purchase price$239.00
Based on your estimates, the true cost is:
$1.41 / month
$16.94
Per Year
$203.25
Over 12 years
Calculation: (Purchase Price + Total Maintenance - Resale Value) ÷ Lifespan
Frequently Asked Questions
How long will the DCD999B 20V MAX XR Hammer Drill/Driver with FLEXVOLT Advantage last?
The DCD999B 20V MAX XR Hammer Drill/Driver with FLEXVOLT Advantage by DeWalt is built to last 12+ years under normal use. This estimate is based on our analysis of build quality (8.3/10), durability rating (7.6/10), and wear resistance (7.1/10).
Is the DCD999B 20V MAX XR Hammer Drill/Driver with FLEXVOLT Advantage easy to repair?
The DCD999B 20V MAX XR Hammer Drill/Driver with FLEXVOLT Advantage scores 6.7/10 for repairability and 7.3/10 for spare parts availability. Some repairs may require basic tools, and spare parts are moderately available.
What warranty does the DCD999B 20V MAX XR Hammer Drill/Driver with FLEXVOLT Advantage come with?
The DCD999B 20V MAX XR Hammer Drill/Driver with FLEXVOLT Advantage comes with a 36-month (3 year) warranty from DeWalt. Our warranty coverage score is 6.4/10, and the service network score is 8.1/10.
Is the DCD999B 20V MAX XR Hammer Drill/Driver with FLEXVOLT Advantage worth the price?
At $239.00, the DCD999B 20V MAX XR Hammer Drill/Driver with FLEXVOLT Advantage has a total cost of ownership score of 7.3/10 and resale value retention of 6.3/10. With an expected lifespan of 12 years, the cost per year works out to approximately $19.92 — making it an excellent long-term investment.
What is the overall BIFL quality score for the DCD999B 20V MAX XR Hammer Drill/Driver with FLEXVOLT Advantage?
The DCD999B 20V MAX XR Hammer Drill/Driver with FLEXVOLT Advantage achieves an overall BIFL quality score of 7.5/10, evaluated across 15 quality dimensions including core performance, longevity, serviceability, and value. This is a solid score indicating good overall quality and longevity.
No Reviews Yet
Share what long-term ownership is really like for the DCD999B 20V MAX XR Hammer Drill/Driver with FLEXVOLT Advantage.