DEWALT DCF891BvsDCF921B
Two impact wrenchs, compared from their makers' published US specs. Specs checked 2026-10-17.
DEWALT DCF891B
DEWALT DCF891B impact wrench
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Find the DCF891B at Acme Tools Opens acmetools.com (US retailer) in a new tab; the current price is shown there.DEWALT DCF921B
DEWALT DCF921B impact wrench
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Find the DCF921B at Acme Tools Opens acmetools.com (US retailer) in a new tab; the current price is shown there.Where they differ
- DEWALT DCF891B: more torque (600 ft-lbs vs 300 ft-lbs).
- DEWALT DCF921B: higher top speed (2,500 rpm vs 2,000 rpm).
- 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 DCF891B | DEWALT DCF921B |
|---|---|---|
| Max torque (manufacturer rating)Differs | 600 ft-lbs | 300 ft-lbs |
| Max breakaway torque (manufacturer rating)Differs | 800 ft-lbs | 450 ft-lbs |
| Max speedDiffers | 2,000 rpm | 2,500 rpm |
| 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's 'assembled product' figure)Differs | 4.25 lbs | 2.76 lbs |
| Length (DEWALT's 'assembled product' figure)Differs | 8.88 in | 9.0 in |
| Case | No Case Included | No Case Included |
| UPC barcodeDiffers | 885911736435 | 885911699983 |
"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: DCF891B, DCF921B. Swap either model in the compare tool.
Sources
- DEWALT US product page DCF891B (features), retrieved 2026-10-17
- DEWALT US product page DCF921B (features), retrieved 2026-10-17
Researched by Rob, licensed electrician (Australia). Found an error? Tell us.
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