DEWALT DCD799BvsDCD805B
Two hammer drills, compared from their makers' published US specs. Specs checked 2026-10-18.
DEWALT DCD799B
Power 585 UWOMax speed 1,650 rpmHammer rate up to 28,050 bpm
Paid link: we may earn a commission.
Find DCD799B prices on Amazon Find DCD799B prices at Acme Tools Opens the retailer in a new tab; the current price is shown there. Marketplace sellers vary: check the seller and exact model.DEWALT DCD805B
Max speed 2,000 rpmChuck type KeylessTool length 7 in
Paid link: we may earn a commission.
Find DCD805B prices on Amazon Check the DCD805B price at Acme Tools Opens the retailer in a new tab; the current price is shown there. Marketplace sellers vary: check the seller and exact model.How to choose between them
- Both run on DEWALT 20V MAX batteries, so your existing packs fit either; the differences above are the whole decision.
From the published figures only; no testing. Rated figures from different makers are not measured the same way.
Where they differ
- DEWALT DCD805B: higher top speed (2,000 rpm vs 1,650 rpm).
- DEWALT DCD799B: shorter (tool length) (6.5 in vs 7 in).
- Both are bare tools: no battery or charger in either box.
6 of 12 listed specs differ or are listed by only one maker. Stated from the published figures only; no testing.
Every published spec, side by side
| Spec | DEWALT DCD799B | DEWALT DCD805B |
|---|---|---|
| Power (DEWALT UWO rating)Only one listed | 585 UWO | Not on maker page |
| Max speedDiffersDCD805B: +350 rpm (+21.2%) | 1,650 rpm | 2,000 rpm |
| Hammer rateOnly one listed | up to 28,050 bpm | Not on maker page |
| Chuck type | Keyless | Keyless |
| Tool lengthDiffersDCD805B: +0.5 in (+7.7%) | 6.5 in | 7 in |
| Motor | Brushless | Brushless |
| Batteries in box | 0 | 0 |
| Battery capacity (each) | None included | None included |
| Charger in box | No | No |
| Clutch settingsOnly one listed | 15 | Not on maker page |
| CaseOnly one listed | No Case Included | Not on maker page |
| Warranty | 3 Year Limited Warranty, 1 Year Free Service, 90 Days Satisfaction Guaranteed | 3 Year Limited Warranty, 1 Year Free Service, 90 Days Satisfaction Guaranteed |
"Differs" marks different published values; pure formatting is not counted. "Only one listed" marks a spec only one maker page gives. Box contents, owner ratings, manuals and sources are on each model's own page: DCD799B, DCD805B. Swap either model in the compare tool. copied
DEWALT DCD799B
Power 585 UWOMax speed 1,650 rpmHammer rate up to 28,050 bpm
Paid link: we may earn a commission.
Find DCD799B prices on Amazon Find DCD799B prices at Acme Tools Opens the retailer in a new tab; the current price is shown there. Marketplace sellers vary: check the seller and exact model.DEWALT DCD805B
Max speed 2,000 rpmChuck type KeylessTool length 7 in
Paid link: we may earn a commission.
Find DCD805B prices on Amazon Check the DCD805B price at Acme Tools Opens the retailer in a new tab; the current price is shown there. Marketplace sellers vary: check the seller and exact model.Sources
- DEWALT US product page DCD799B (features), retrieved 2026-10-18
- DEWALT US product page DCD805B (features), retrieved 2026-10-18
Spotted a wrong number? Report a spec error (opens an email with both models filled in). We re-check against the makers' pages and correct the page.
Researched by Rob, licensed electrician (Australia), 18 years on the tools. Found an error? Tell us.
We may earn a commission if you buy through our links. Retailer links are paid links; commission never changes what we publish. Affiliate disclosure.