DEWALT DCF921BvsDCF921P2
Two impact wrenches, compared from their makers' published US specs. Specs checked 2026-10-18.
The DEWALT DCF921B and DCF921P2 are two package options for the exact same DCF921 impact wrench on the DEWALT 20V MAX platform. Tool performance specs are identical; the DCF921B is the bare tool (no battery or charger), while the DCF921P2 kit adds DCB115, 2x DCB205, Kit Bag, Belt Clip. All figures below come from published US manufacturer specifications and operator manuals; we have not hands-on tested these units.
DEWALT DCF921B
Max torque 300 ft-lbsMax breakaway torque 450 ft-lbsMax speed 2,500 rpm (the same DEWALT table also says 2800 rpm no-load speed)
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Find DCF921B prices on Amazon Find DCF921B 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 DCF921P2
Max torque 300 ft-lbsMax breakaway torque 450 ft-lbsMax speed 2,500 rpm
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Find DCF921P2 prices on Amazon Find DCF921P2 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.
- The DCF921P2 adds batteries and a charger to the same tool; the DCF921B suits someone who already owns them.
- Evidence boundary: 1 spec row is 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
- In the box: the DCF921B has no battery or charger; the DCF921P2 has 2x DCB205, charger.
3 verified spec differences across 13 specs published for both models (1 spec is 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.
- Matching published specs: Max torque: 300 ft-lbs; Max breakaway torque: 450 ft-lbs; Max speed: 2,500 rpm (the same DEWALT table also says 2800 rpm no-load speed); Impact rate: 0-3,550 ipm; Anvil: 1/2 in; Tool length: 4.95 in.
Published by only one maker (data gaps)
- Case: DCF921B lists No Case Included; not listed on DCF921P2's US maker page.
A missing value means the manufacturer page does not publish that figure; we never guess or count an unstated spec as a verified difference.
Bare tool vs kit cost calculator (DCF921B vs DCF921P2)
Enter current prices from your preferred retailer to see what you are paying for the bundled battery and charger in the DCF921P2 kit. We do not pre-fill live store prices unless supplied by an approved feed within our freshness window.
Enter the current DCF921B and DCF921P2 prices above to compare the kit premium against the bundled DCB115, 2x DCB205, Kit Bag, Belt Clip.
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Every published spec, side by side
| Spec | DEWALT DCF921B | DEWALT DCF921P2 |
|---|---|---|
| Max torque (manufacturer rating) | 300 ft-lbs | 300 ft-lbs |
| Max breakaway torque (manufacturer rating) | 450 ft-lbs | 450 ft-lbs |
| Max speed | 2,500 rpm (the same DEWALT table also says 2800 rpm no-load speed) | 2,500 rpm |
| Impact rate | 0-3,550 ipm | 0-3,550 ipm |
| Anvil | 1/2 in | 1/2 in |
| Tool length | 4.95 in | 4.95 in |
| Motor | Brushless | Brushless |
| Batteries in boxDiffers | 0 | 2 |
| Battery capacity (each)Differs | None included | 5.0 Ah |
| Charger in boxDiffers | No | Yes |
| Anvil type | Hog Ring Anvil | Hog Ring Anvil |
| Weight (DEWALT manual figure) | 2.47 lbs | 2.47 lbs |
| 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: DCF921B, DCF921P2. Swap either model in the compare tool. copied copied
DEWALT DCF921B
Max torque 300 ft-lbsMax breakaway torque 450 ft-lbsMax speed 2,500 rpm (the same DEWALT table also says 2800 rpm no-load speed)
Paid link: we may earn a commission.
Find DCF921B prices on Amazon Find DCF921B 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 DCF921P2
Max torque 300 ft-lbsMax breakaway torque 450 ft-lbsMax speed 2,500 rpm
Paid link: we may earn a commission.
Find DCF921P2 prices on Amazon Find DCF921P2 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 DCF921B (NA517039_DCF921_DCF922_DCF923_T1_NA.pdf), retrieved 2026-10-18
- DEWALT manual for DCF921P2 (NA517039_DCF921_DCF922_DCF923_T1_NA.pdf), retrieved 2026-10-18
- DEWALT US product page DCF921B (features), retrieved 2026-10-18
- DEWALT US product page DCF921P2 (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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