Disclosure
This website is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.
If you’re a DIYer staring at two yellow-and-black DEWALT boxes, I get the confusion. The DCK277D2 brings brushless motors with 1,500 in-lbs of torque, while the DCK240C2 packs a punchier 1,700 in-lbs but uses brushed tech. Both include two batteries, a charger, and a contractor bag.
This comparison is for weekend warriors, home tinkerers, and first-time tool buyers who want real value without overpaying. The key trade-off is brushless efficiency versus raw torque output. Stick around — I tested both on drywall, deck screws, and furniture assembly to give you a straight answer.
🏆 Quick Picks — My Top Recommendations
Best Overall: DEWALT DCK277D2
Brushless motors run cooler and last longer, with a compact 7.6-inch design perfect for tight spots — Check Price →
Runner-Up: DEWALT DCK240C2
Higher 1,700 in-lbs of torque and a proven track record with 60,592 reviews — Check Price →
Before I get into the nitty-gritty, here’s a quick side-by-side of the specs that actually matter for DIY work.
Full Specs Comparison
| Specification | DEWALT 20V MAX Cordless D | DEWALT 20V MAX Cordless D |
|---|---|---|
| Voltage | ✅ 20V | 20V |
| Battery Capacity | ✅ 2.0Ah | — |
| Charger Included | ✅ Yes | ✅ Yes |
| Bag Included | ✅ Yes | ✅ Yes |
| Drill Model | ✅ DCD777 | — |
| Impact Driver Model | ✅ DCF787 | — |
| Impact Driver Length | — | ✅ 5.55 in |
| Impact Driver Weight | — | ✅ 2.8 lbs |
| Brushless Motor | ✅ Yes | — |
| Compact Design | — | ✅ Yes |
| Number of Batteries | ✅ 2 | 2 |
| Battery Type | ✅ Lithium-Ion | — |
Individual Product Breakdown
I put both kits through the same DIY gauntlet — driving 3-inch deck screws, drilling through studs, and assembling flat-pack furniture — to see which one earned its spot in my garage. Here’s how each performed.
DEWALT 20V MAX Cordless Drill and Impact Driver (DCK277D2)
Brushless | 1,500 in-lbs Torque | 2,800 RPM | 8.8 lbs | 2 x 2.0Ah Batteries
- The compact 7.6-inch front-to-back, lightweight design fits into tight...
- Its ergonomic comfort grip provides ideal balance and tool control, great...
- A bright LED with a 20-second trigger release delay increases visibility in...
The DCK277D2 impressed me right away with its brushless motors — they run noticeably cooler and more efficiently than brushed alternatives, which means longer runtime per charge. The compact 7.6-inch front-to-back design slipped into tight cabinet spaces where my older drill wouldn’t fit, and the LED with a 20-second trigger delay kept my work area lit without holding the trigger. The quick-release hex chuck on the impact driver made one-handed bit swaps a breeze, though I did notice the 2.0Ah batteries drain faster under heavy load than I’d like. This kit is perfect for DIYers who want modern brushless tech without stepping up to a full professional rig — just keep a spare battery charged for longer projects.
✅ Pros
- Brushless motors run cooler and last longer than brushed
- Compact 7.6-inch length reaches tight spots easily
- 1,500 in-lbs of torque handles most DIY fastening jobs
- Rated 4.8 out of 5 stars from 4,664 buyers
❌ Cons
- 2.0Ah batteries drain faster under heavy continuous use
- Lower torque than the DCK240C2 at 1,500 vs 1,700 in-lbs
DEWALT 20V MAX Cordless Drill and Impact Driver (DCK240C2)
Brushed | 1,700 in-lbs Torque | 5.55 in. Impact Driver | 3.6 lbs Drill | 2 x 1.3Ah Batteries
- Ergonomically Designed: Work in tight areas with a compact design that gets...
- Compact and Lightweight: Both tools are designed to fit into difficult to...
- Both the DEWALT impact driver and electric drill driver feature integrated...
The DCK240C2 is the crowd favorite for a reason — it’s been around since 2014 and has racked up over 60,592 reviews with a rock-solid 4.7-star average. The brushed motors deliver a beefy 1,700 in-lbs of torque, which actually beats the brushless DCK277D2 by 200 in-lbs, giving it extra grunt for sinking larger lag bolts. The 5.55-inch impact driver and 3.6-pound drill are both lightweight and compact, making them easy to handle overhead or in awkward angles. The one-handed loading 1/4-inch hex chuck is genuinely convenient, and the 1/2-inch single sleeve ratcheting chuck on the drill grips bits tightly without slipping. My main gripe is the 1.3Ah batteries — they’re smaller than the DCK277D2’s 2.0Ah packs, so I found myself swapping them more often during longer sessions.
✅ Pros
- Higher 1,700 in-lbs torque than the brushless option
- Proven reliability with 60,592 customer reviews
- Lightweight — drill weighs just 3.6 lbs
- 1/2-inch ratcheting chuck grips bits securely
❌ Cons
- Brushed motors run hotter and less efficiently
- Smaller 1.3Ah batteries mean more frequent swaps
Which One Should You Buy?
After spending time with both kits, I can tell you there’s no universal winner — it really comes down to how you work and what you’re building. Let me break down exactly who should grab which one.
DEWALT DCK277D2 is right for you if…
- You work in tight spaces like cabinet interiors or between studs — the compact 7.6-inch front-to-back length is a lifesaver.
- You want brushless efficiency that runs cooler and gets more runtime from the included 2.0Ah batteries.
- You’re building a DEWALT ecosystem and want the newer, more modern tool platform to grow into.
DEWALT DCK240C2 is right for you if…
- You regularly drive large lag bolts or self-tapping screws — the extra 200 in-lbs of torque (1,700 total) makes a noticeable difference.
- You want the most battle-tested combo kit on the market, backed by 60,592 reviews and over a decade of field use.
- You prioritize a lighter drill — at 3.6 lbs, it’s easier on your wrist during long overhead work.
❌ Who Should Skip All of These?
If you’re a professional contractor running tools 8+ hours a day, skip both of these entry-level kits — you’ll want something from the DEWALT XR or FlexVolt lines with bigger batteries and higher duty cycles. And if you’re a casual DIYer who only drills holes once a month, save your money and grab a single drill instead of a two-tool kit.
For the average weekend warrior, my clear pick is the DCK277D2 — the brushless motors and compact design give you modern performance that’ll last years longer, even if the DCK240C2 edges it out on raw torque.
Frequently Asked Questions
Which is better for heavy DIY projects, the DCK277D2 or the DCK240C2?
For heavy DIY work like building decks or framing, I’d actually give the edge to the DCK240C2 because it delivers 1,700 in-lbs of torque compared to the DCK277D2’s 1,500 in-lbs. That extra 200 in-lbs really shows when you’re sinking long structural screws into dense lumber. However, the DCK277D2’s brushless motors run cooler and more efficiently, so you won’t burn through batteries as fast on those marathon sessions. If you’re mostly drilling and driving in softer materials like pine or drywall, either will handle it — but for the heaviest stuff, the torque advantage wins.
Is the DCK277D2 worth the extra money over the DCK240C2?
In my testing, yes — but only if you value longevity and efficiency over raw power. The brushless motors in the DCK277D2 are the big differentiator; they generate less heat, waste less energy, and typically last thousands of hours longer than brushed motors. You also get bigger 2.0Ah batteries in the DCK277D2 versus the 1.3Ah packs in the DCK240C2, which means fewer trips back to the charger. That said, if you’re on a tight budget and only use tools occasionally, the DCK240C2’s extra torque and proven track record might serve you just fine.
Which combo kit has better battery life?
The DCK277D2 wins this one hands down. It comes with two 2.0Ah battery packs, while the DCK240C2 only includes two 1.3Ah packs — that’s roughly 54% more capacity per battery. In my real-world test, I got noticeably longer runtime from the DCK277D2 before needing to swap packs, especially when drilling repetitive holes. The brushless motors also sip power more efficiently than the brushed motors in the DCK240C2, stretching that charge even further.
Are both kits compatible with the same DEWALT 20V MAX batteries?
Yes, absolutely. Both the DCK277D2 and DCK240C2 use the standard DEWALT 20V MAX battery platform, so any 20V MAX battery you already own will work in either kit. That means if you’ve got extra batteries from other DEWALT tools, you can swap them freely between both sets. The chargers are also interchangeable, which is one of the nice things about staying within the DEWALT ecosystem.
Which kit is more compact and easier to handle in tight spaces?
The DCK277D2 takes the crown here. Its drill measures just 7.6 inches front-to-back, making it noticeably easier to maneuver inside cabinets, between studs, or in cramped corners. The DCK240C2’s drill comes in at 7.5 inches, which is nearly identical, but the impact driver on the DCK277D2 feels more balanced in hand. Both have ergonomic grips, but the DCK277D2’s slimmer profile made it my go-to for overhead and confined work.
Which kit has better customer reviews and reliability?
The DCK240C2 is the clear reliability champion here, with a staggering 60,592 reviews and a 4.7-star average — that’s a massive sample size that speaks to years of consistent performance. The DCK277D2 has fewer reviews at 4,664 but sits slightly higher at 4.8 stars, which tells me early buyers are very happy with it. For pure long-term proof, the DCK240C2 has been around since 2014 and has essentially become the gold standard for budget-friendly DEWALT kits.
My Final Verdict
After putting both kits through real DIY work, the DEWALT DCK277D2 is my clear winner. The brushless motors, 2.0Ah batteries, and compact 7.6-inch design give you modern efficiency and longer runtime that’ll serve you better over the long haul — even though the DCK240C2 packs more torque at 1,700 in-lbs. If you’re a weekend warrior who wants a kit that’ll last a decade, this is the one.
If you’re still on the fence, ask yourself this: do you want raw power or modern efficiency? The DCK240C2’s extra 200 in-lbs of torque is great for heavy lag bolts, but the DCK277D2’s brushless tech and bigger batteries mean you’ll swap packs less often and get more work done per charge. For most DIYers, that efficiency wins.
Winner: DEWALT DCK277D2
- The compact 7.6-inch front-to-back, lightweight design fits into tight...
- Its ergonomic comfort grip provides ideal balance and tool control, great...
- A bright LED with a 20-second trigger release delay increases visibility in...
Best for DIYers who want brushless efficiency, longer battery life, and a compact tool that fits tight spaces. The 4.8-star rating from 4,664 buyers backs up its quality.
Runner-Up: DEWALT DCK240C2
- Ergonomically Designed: Work in tight areas with a compact design that gets...
- Compact and Lightweight: Both tools are designed to fit into difficult to...
- Both the DEWALT impact driver and electric drill driver feature integrated...
Best for budget-focused DIYers who need maximum torque (1,700 in-lbs) and want the most proven kit on the market with 60,592 reviews behind it.
As an Amazon Associate I earn from qualifying purchases at no extra cost to you.