DEWALT DCF899BvsDCF961B
Two impact wrenches, compared from their makers' published US specs. Specs checked 2026-10-18.
Comparing the DEWALT DCF899B (BARE TOOL) and DEWALT DCF961B (BARE TOOL) on the DEWALT 20V MAX platform: across 10 specs published for both models, 3 differ and 7 match, while 2 specs are published by only one maker and not assumed for the other. Key distinction: DEWALT DCF899B: higher top speed (1,900 rpm vs 1,200 rpm). All figures are from published US manufacturer specs and operator manuals, not hands-on testing.
DEWALT DCF899B
Max torque 700 ft-lbsMax breakaway torque 1,200 ft-lbsMax speed 1,900 rpm
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Max torque 1,320 ft-lbs (conflict: the same DEWALT page also says 1,626 Nm, about 1,200 ft-lbs)Max breakaway torque 1,900 ft-lbs (conflict: the same DEWALT page also says 2,372 Nm, about 1,750 ft-lbs)Max speed 1,200 rpm
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Find DCF961B prices on Amazon Find DCF961B prices at eBay 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 and chargers fit either tool.
- Tight clearance between studs or inside cabinets? The DCF961B publishes a shorter tool head length (8.43 in vs 8-13/16 in on the DCF899B).
- Evidence boundary: 2 spec rows are published by only one maker in the table below; unstated figures are treated as unknown rather than assumed.
From the published figures only; no testing. Rated figures from different makers are not measured the same way.
Where they differ
- DEWALT DCF899B: higher top speed (1,900 rpm vs 1,200 rpm).
- DEWALT DCF961B: shorter (tool length) (8.43 in vs 8-13/16 in).
3 verified spec differences across 10 specs published for both models (2 specs are listed by only one maker). Stated from the published figures only; no testing.
What they share
- Same battery system (DEWALT 20V MAX): both tools run on the same packs and chargers.
- Same tool category: both are impact wrenches.
- Both are bare tools: no battery or charger in either box.
- Matching published specs: Anvil: 1/2 in; Motor: Brushless; Batteries in box: 0; Battery capacity: None included; Charger in box: No; Case: No Case Included.
Published by only one maker (data gaps)
- Impact rate: DCF961B lists 0-1,890 ipm; we hold no matching figure for the DCF899B.
- Weight (DEWALT manual figure): DCF961B lists 7.65 lbs; the DCF899B page lists only DEWALT's assembled-product weight, a package figure we do not compare.
A missing value means we have no published figure under that heading for the other model (its maker may not publish it, or may state it differently); we never guess or count an unstated spec as a verified difference.
Every published spec, side by side
| Spec | DEWALT DCF899B | DEWALT DCF961B |
|---|---|---|
| Max torque (manufacturer rating)Maker's wording, not ranked or compared | 700 ft-lbs | 1,320 ft-lbs (conflict: the same DEWALT page also says 1,626 Nm, about 1,200 ft-lbs) |
| Max breakaway torque (manufacturer rating)Maker's wording, not ranked or compared | 1,200 ft-lbs | 1,900 ft-lbs (conflict: the same DEWALT page also says 2,372 Nm, about 1,750 ft-lbs) |
| Max speedDiffersDCF899B: +700 rpm (+58.3%) | 1,900 rpm | 1,200 rpm |
| Impact rateOnly one listed | Not on maker page | 0-1,890 ipm |
| Anvil | 1/2 in | 1/2 in |
| Tool lengthDiffersDCF899B: +0.383 in (+4.5%) | 8-13/16 in | 8.43 in |
| Motor | Brushless | Brushless |
| Batteries in box | 0 | 0 |
| Battery capacity (each) | None included | None included |
| Charger in box | No | No |
| Anvil typeDiffers | Detent Pin Anvil | Hog Ring Anvil |
| Case | No Case Included | No Case Included |
| 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 |
| Weight (DEWALT manual figure)Only one listed | Not on maker page | 7.65 lbs |
"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: DCF899B, DCF961B. Swap either model in the compare tool. copied copied
DEWALT DCF899B
Max torque 700 ft-lbsMax breakaway torque 1,200 ft-lbsMax speed 1,900 rpm
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Find DCF899B prices on Amazon Find DCF899B prices at eBay Opens the retailer in a new tab; the current price is shown there. Marketplace sellers vary: check the seller and exact model.DEWALT DCF961B
Max torque 1,320 ft-lbs (conflict: the same DEWALT page also says 1,626 Nm, about 1,200 ft-lbs)Max breakaway torque 1,900 ft-lbs (conflict: the same DEWALT page also says 2,372 Nm, about 1,750 ft-lbs)Max speed 1,200 rpm
Paid link: we may earn a commission.
Find DCF961B prices on Amazon Find DCF961B prices at eBay Opens the retailer in a new tab; the current price is shown there. Marketplace sellers vary: check the seller and exact model.Sources
- DEWALT manual for DCF961B (NA303072_DCF961_T1_NA.pdf), retrieved 2026-10-18
- DEWALT US product page DCF899B (features), retrieved 2026-10-18
- DEWALT US product page DCF961B (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.
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