DEWALT DCF921BvsDCF923B
Two impact wrenches, compared from their makers' published US specs. Specs checked 2026-10-18.
Comparing the DEWALT DCF921B (BARE TOOL) and DEWALT DCF923B (BARE TOOL) on the DEWALT 20V MAX platform: across 13 specs published for both models, 1 differs and 12 match. Key distinction: every spec published on both maker pages matches. All figures are from published US manufacturer specs and operator manuals, not hands-on testing.
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 DCF923B
Max torque 300 ft-lbsMax breakaway torque 450 ft-lbsMax speed 2,500 rpm
Paid link: we may earn a commission.
Find DCF923B prices on Amazon Find DCF923B 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.
From the published figures only; no testing. Rated figures from different makers are not measured the same way.
Where they differ
The two maker pages list the same figures for every spec they both publish.
1 verified spec difference across 13 specs published for both models. 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: Max torque: 300 ft-lbs; Max breakaway torque: 450 ft-lbs; Impact rate: 0-3,550 ipm; Tool length: 4.95 in; Motor: Brushless; Batteries in box: 0.
Every published spec, side by side
| Spec | DEWALT DCF921B | DEWALT DCF923B |
|---|---|---|
| Max torque (manufacturer rating) | 300 ft-lbs | 300 ft-lbs |
| Max breakaway torque (manufacturer rating) | 450 ft-lbs | 450 ft-lbs |
| Max speedMaker's wording, not ranked or compared | 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 |
| AnvilDiffers | 1/2 in | 3/8 in |
| Tool length | 4.95 in | 4.95 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) | 2.47 lbs | 2.47 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: DCF921B, DCF923B. 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 DCF923B
Max torque 300 ft-lbsMax breakaway torque 450 ft-lbsMax speed 2,500 rpm
Paid link: we may earn a commission.
Find DCF923B prices on Amazon Find DCF923B 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 DCF923B (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 DCF923B (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.