Craftsman CMCF830BvsDEWALT DCF850B
Two impact drivers, compared from their makers' published US specs. Specs checked 2026-10-18. Makers do not always rate the same way, so treat cross-brand figures with care.
Craftsman CMCF830B
Max speed 3,200 rpmMotor BrushlessBatteries in box 0
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Find CMCF830B prices on Amazon Find CMCF830B 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.DEWALT DCF850B
Max torque 1,825 in-lbsMax speed 3,250 rpmTool length under 4 in (DEWALT's wording)
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Find DCF850B prices on Amazon Check the DCF850B 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.How to choose between them
- Already own Craftsman V20 batteries? The CMCF830B uses them; the DCF850B needs DEWALT 20V MAX batteries and a charger.
- Already own DEWALT 20V MAX batteries? The DCF850B is the one that fits what you have.
- Starting from nothing: this is a battery-system choice more than a tool choice; compare the kit versions (DCF850E1, DCF850P1), which add batteries and a charger.
From the published figures only; no testing. Rated figures from different makers are not measured the same way.
Where they differ
- Different battery systems: Craftsman V20 vs DEWALT 20V MAX. Batteries and chargers do not interchange.
- DEWALT DCF850B: higher top speed (3,250 rpm vs 3,200 rpm).
- Both are bare tools: no battery or charger in either box.
7 of 11 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 | Craftsman CMCF830B | DEWALT DCF850B |
|---|---|---|
| Max torque (manufacturer rating)Only one listed | Not on maker page | 1,825 in-lbs |
| Max speedDiffersDCF850B: +50 rpm (+1.6%) | 3,200 rpm | 3,250 rpm |
| Tool lengthOnly one listed | Not on maker page | under 4 in (DEWALT's wording) |
| Motor | Brushless | Brushless |
| Batteries in box | 0 | 0 |
| Battery capacity (each) | None included | None included |
| Charger in box | No | No |
| Chuck typeDiffers | Quick-Release | Hex |
| Chuck sizeOnly one listed | 1/4 in | Not on maker page |
| WarrantyDiffers | 3 Year Limited Warranty | 3 Year Limited Warranty, 1 Year Free Service, 90 Days Satisfaction Guaranteed |
| CaseOnly one listed | Not on maker page | No Case Included |
"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: CMCF830B, DCF850B. Swap either model in the compare tool. copied
Craftsman CMCF830B
Max speed 3,200 rpmMotor BrushlessBatteries in box 0
Paid link: we may earn a commission.
Find CMCF830B prices on Amazon Find CMCF830B 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.DEWALT DCF850B
Max torque 1,825 in-lbsMax speed 3,250 rpmTool length under 4 in (DEWALT's wording)
Paid link: we may earn a commission.
Find DCF850B prices on Amazon Check the DCF850B 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.Sources
- Craftsman US product page CMCF830B (features), retrieved 2026-10-18
- DEWALT US product page DCF850B (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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