
Ryobi P223
Score: 88/100
DEWALT DCD799B
Score: 88/100Rankings

The Ryobi ONE+ HP 18V Brushless Rotary Hammer is a high-performance tool designed for homeowners and DIY enthusiasts who need professional-grade power in a cordless format. Its key strength lies in the brushless motor and vibration reduction technology, which enhance both power and user comfort. While it lacks the chisel mode of some competitors in its specific configuration, it offers excellent value within the Ryobi ecosystem.

The DEWALT DCD799B is a bare-tool, 20V MAX* ATOMIC COMPACT SERIES brushless hammer drill designed for high performance in confined spaces. Its primary limitation is the lack of included batteries and charger, requiring users to invest in the 20V MAX ecosystem. It is best suited for professionals such as electricians and plumbers who need maximum power in tight areas.
| Attribute | ![]() | ![]() |
|---|---|---|
18 V | 20 Vbest | |
25.4 mmbest | 12.7 mm | |
5,000 BPM | 28,050 BPMbest | |
2.1 Jbest | — | |
| ↓ lower better | 2.938 kg | 1.15 kgbest |
25.4 mmbest | — | |
1,380 RPM | 1,650 RPMbest | |
— | 2best |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | ![]() | ![]() |
|---|---|---|
Power & Energy(1) | ||
Voltage (V) | 18 V | 20 V |
Chuck & Bits(2) | ||
Chuck Size (mm) | 25.4 mm | 12.7 mm |
Chuck Type | SDS-Plus | Keyless |
Ergonomics & Design(2) | ||
Weight (kg) | 2.938 kg | 1.15 kg |
Handle Type | Anti-vibration | None |
Performance & Speed(2) | ||
Impact Rate (BPM) | 5000 BPM | 28050 BPM |
No-Load Speed (RPM) | 1380 RPM | 1650 RPM |
Features & Safety(1) | ||
Operating Modes | 3 | Drill/Hammer |


Professional reviewers highlight the tool's exceptional value and quality, noting that it delivers incredible value for the price with professional-grade capability.
User feedback indicates strong satisfaction with a 4.8-star rating, with users appreciating the tool's capabilities and vibration reduction.

“INCREDIBLE VALUE”




Professional reviewers, including Pro Tool Reviews, designate the DCD799B as the 'king of the Atomic drill line' due to its combination of highest power output (tested at 520-585 UWO) and compact 6.5-inch form factor. It is highly recommended for professionals who need hammer drill capabilities in a reduced-size profile.
Search results indicate a lack of direct consumer reviews, but common themes from product contexts highlight praise for its compact power and masonry performance in tight spaces. There are no recurring complaints noted in the available data, suggesting general satisfaction with its utility for confined area work.