DEWALT DCD771C2vsDCD777D1
Two drill drivers, compared from their makers' published US specs. Specs checked 2026-10-18.
Comparing the DEWALT DCD771C2 (KIT) and DEWALT DCD777D1 (KIT) on the DEWALT 20V MAX platform: across 5 specs published for both models, 3 differ and 2 match, while 5 specs are published by only one maker and not assumed for the other. Key distinction: DEWALT DCD777D1: more capacity per battery (2.0 Ah vs 1.5 Ah). All figures are from published US manufacturer specs and operator manuals, not hands-on testing.
DEWALT DCD771C2
Power 300 UWOMax speed 1,500 rpmChuck type Keyless
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Find DCD771C2 prices on Amazon Find DCD771C2 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 DCD777D1
Max speed 1,750 rpm (the DCD777B page also says 1600 rpm)Chuck type KeylessClutch settings 15
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Find DCD777D1 prices on Amazon Find DCD777D1 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.
- Clearance in tight bays: the DCD777D1 publishes a tool length of 7.6 in (the DCD777B page also says 7.52 in); we have no head-only length on record for the DCD771C2.
- Evidence boundary: 5 spec rows are 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
- DEWALT DCD777D1: more capacity per battery (2.0 Ah vs 1.5 Ah).
- In the box: the DCD771C2 has 2x 20V MAX Compact Li-ion battery packs, charger; the DCD777D1 has DCB203 20V MAX XR 2.0Ah Battery, charger.
3 verified spec differences across 5 specs published for both models (5 specs are 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 drill drivers.
- Both are kit SKUs that include battery and charger in the box.
- Matching published specs: Chuck type: Keyless; Charger in box: Yes.
Published by only one maker (data gaps)
- Power (DEWALT UWO rating): DCD771C2 lists 300 UWO; we hold no matching figure for the DCD777D1.
- Clutch settings: DCD777D1 lists 15; we hold no matching figure for the DCD771C2.
- Tool length: DCD777D1 lists 7.6 in (the DCD777B page also says 7.52 in); we hold no matching figure for the DCD771C2.
- Chuck size: DCD771C2 lists 1/2 in; we hold no matching figure for the DCD777D1.
- Warranty: DCD771C2 lists 3 Year Limited Warranty, 1 Year Free Service, 90 Days Satisfaction Guaranteed; we hold no matching figure for the DCD777D1.
A missing value means we have no published figure under that heading for the other model (its maker may not publish it, or may state it differently); we never guess or count an unstated spec as a verified difference.
Every published spec, side by side
| Spec | DEWALT DCD771C2 | DEWALT DCD777D1 |
|---|---|---|
| Power (DEWALT UWO rating)Only one listed | 300 UWO | Not on maker page |
| Max speedMaker's wording, not ranked or compared | 1,500 rpm | 1,750 rpm (the DCD777B page also says 1600 rpm) |
| Chuck type | Keyless | Keyless |
| Clutch settingsOnly one listed | Not on maker page | 15 |
| Tool lengthOnly one listed | Not on maker page | 7.6 in (the DCD777B page also says 7.52 in) |
| MotorDiffers | Brushed | Brushless |
| Batteries in boxDiffers | 2 | 1 |
| Battery capacity (each)DiffersDCD777D1: +0.5 Ah (+33.3%) | 1.5 Ah | 2.0 Ah |
| Charger in box | Yes | Yes |
| Chuck sizeOnly one listed | 1/2 in | Not on maker page |
| WarrantyOnly one listed | 3 Year Limited Warranty, 1 Year Free Service, 90 Days Satisfaction Guaranteed | Not on maker page |
"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: DCD771C2, DCD777D1. Swap either model in the compare tool. copied copied
DEWALT DCD771C2
Power 300 UWOMax speed 1,500 rpmChuck type Keyless
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Find DCD771C2 prices on Amazon Find DCD771C2 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 DCD777D1
Max speed 1,750 rpm (the DCD777B page also says 1600 rpm)Chuck type KeylessClutch settings 15
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Find DCD777D1 prices on Amazon Find DCD777D1 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 US product page DCD771C2 (features), retrieved 2026-10-18
- DEWALT US product page DCD777B (features), retrieved 2026-10-18
- DEWALT US product page DCD777D1 (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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