DEWALT DCF900BvsDCF961B
Two impact wrenches, compared from their makers' published US specs. Specs checked 2026-10-18.
DEWALT DCF900B
Max torque 1,030 ft-lbsMax breakaway torque 1,400 ft-lbsMax speed 2,300 rpm
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Find DCF900B prices on Amazon Check the DCF900B 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.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
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Find DCF961B prices on Amazon Find DCF961B 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.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 DCF961B: more torque (1,320 ft-lbs (conflict: the same DEWALT page also says 1,626 Nm, about 1,200 ft-lbs) vs 1,030 ft-lbs).
- DEWALT DCF961B: more breakaway torque (1,900 ft-lbs (conflict: the same DEWALT page also says 2,372 Nm, about 1,750 ft-lbs) vs 1,400 ft-lbs).
- DEWALT DCF900B: higher top speed (2,300 rpm vs 1,200 rpm).
- DEWALT DCF900B: higher impact rate (0-2,200 ipm vs 0-1,890 ipm).
- DEWALT DCF961B: shorter (tool length) (8.43 in vs 8.81 in).
- Both are bare tools: no battery or charger in either box.
6 of 14 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 DCF900B | DEWALT DCF961B |
|---|---|---|
| Max torque (manufacturer rating)Differs | 1,030 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)Differs | 1,400 ft-lbs | 1,900 ft-lbs (conflict: the same DEWALT page also says 2,372 Nm, about 1,750 ft-lbs) |
| Max speedDiffersDCF900B: +1,100 rpm (+91.7%) | 2,300 rpm | 1,200 rpm |
| Impact rateDiffersDCF900B: +310 ipm (+16.4%) | 0-2,200 ipm | 0-1,890 ipm |
| Anvil | 1/2 in | 1/2 in |
| Tool lengthDiffersDCF900B: +0.38 in (+4.5%) | 8.81 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 type | Hog Ring Anvil | Hog Ring Anvil |
| Weight (DEWALT manual figure)Differs | 6.4 lbs | 7.65 lbs |
| 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 |
"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: DCF900B, DCF961B. Swap either model in the compare tool. copied
DEWALT DCF900B
Max torque 1,030 ft-lbsMax breakaway torque 1,400 ft-lbsMax speed 2,300 rpm
Paid link: we may earn a commission.
Find DCF900B prices on Amazon Check the DCF900B 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.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 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 manual for DCF900B (NA521503_man_cordless_impactor_DCF900_NA_NBC.pdf), retrieved 2026-10-18
- DEWALT manual for DCF961B (NA303072_DCF961_T1_NA.pdf), retrieved 2026-10-18
- DEWALT US product page DCF900B (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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