Impact Driver vs Drill: Reddit's Honest Comparison

The question comes up constantly on r/Tools and r/DIY: do you actually need both an impact driver and a drill, or can one tool cover everything? The answer depends on what you’re building , and which combination of tools makes sense for your platform. This comparison pulls from manufacturer specs, owner threads, and community consensus across the major cordless forums to sort out where each tool earns its place.

Three picks represent the realistic options a DIYer will encounter: a drill-and-impact combo set, a DTC brushless impact, and a platform-committed DeWalt driver. The Drills & Drivers hub covers the broader category , this article focuses on the specific head-to-head decision.

Quick Verdict

The CRAFTSMAN V20 MAX Cordless Drill Driver and Impact Driver Set is the right call for anyone starting out or filling gaps in a V20 platform. The DEWALT 20V MAX Impact Driver (DCF787D1) is the stronger standalone driver for an established 20V MAX user who already owns batteries. The Robustrue Impact Driver occupies a narrower lane , the specs look compelling on paper, but owner consensus and long-term support questions make it a harder sell against two tools with proven platform backing.

Specs Side by Side

| Spec | CRAFTSMAN V20 Combo | Robustrue 21V Impact | DeWalt DCF787D1 | |, |, |, |, | | Voltage | 20V MAX | 21V (nominal) | 20V MAX | | Chuck / Drive | 1/2” keyless + 1/4” hex | 1/4” hex | 1/4” hex | | Motor | Brushed (drill) / brushed (driver) | Brushless | Brushless | | Max Torque (driver) | Not separately published | 230 N·m / 2,035 in-lbs | 1,825 in-lbs | | Speed Modes | 2-speed (drill) | 3-speed | 3-speed | | Included Batteries | 2 × 1.3Ah | 2 × 2.0Ah | 1 × 2.0Ah | | Charger Included | Yes | Yes | Yes | | Platform | CRAFTSMAN V20 | Proprietary 21V | DeWalt 20V MAX | | LED Light | Yes | Yes | Yes |

Torque figures drawn from manufacturer published data. Robustrue’s 21V nominal rating aligns with a standard 20V MAX cell at full charge , the practical voltage difference is negligible.

CRAFTSMAN V20 MAX Combo Set , Strengths and Trade-offs

The CRAFTSMAN V20 MAX set’s main argument is value density: two tools, two batteries, a charger, and a bag , all in one purchase. For a DIYer who doesn’t yet own a drill or an impact driver, that’s a practical entry point into a real battery ecosystem. The V20 platform is widely stocked at major retailers, and CRAFTSMAN has backed it with a consistent tool lineup over several years. Owner threads on r/DIY consistently describe this combo as a solid first-set purchase for weekend projects, basic renovation work, and furniture assembly.

The drill is brushed, which matters over time. Brushless motors run cooler, last longer under sustained loads, and typically deliver better battery efficiency , the DCF787 and the Robustrue are both brushless on the driver side. For occasional use and lighter DIY tasks, the brushed motor in the V20 drill is not a liability. For anyone pushing the drill hard on longer sessions, owner reports point to expected heat and run-time limitations compared to brushless alternatives.

What the combo set does well is remove a decision. Both tools come calibrated for general DIY use, the battery platform is expandable, and the package requires no assembly of components from separate purchases. For a V20-platform builder who needs both tools simultaneously, the case for the combo is strong.

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Robustrue Impact Driver 21V

The Robustrue Impact Driver leads with its torque spec , 230 N·m / 2,035 in-lbs is a high number. On paper, that puts it ahead of the DeWalt DCF787 by a meaningful margin for fastener-driving applications. The brushless motor is the right choice for a standalone impact driver, and the three-speed mode selector gives it reasonable versatility across fastener sizes.

The question owner threads raise isn’t about the specs , it’s about the ecosystem. The Robustrue runs a proprietary 21V battery that does not cross-compatible with DeWalt, CRAFTSMAN, Milwaukee, or any major platform. Long-term owner threads on r/Tools flag this consistently: when you need a second battery, a replacement cell, or a firmware update for a smart charger, a DTC brand’s support infrastructure is a real variable. For buyers without an existing battery investment who want a dedicated impact driver and plan to keep the tool set limited, the Robustrue’s specs represent genuine value.

Spec sheets show the brushless motor and three-speed selection are legitimate features. Owner reports are fewer in volume than the established brands , the ASIN is newer , which makes consensus harder to establish with confidence. The stronger use case is a buyer who wants a single, high-torque impact driver without committing to a major platform and is comfortable with a proprietary battery going forward.

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DEWALT 20V MAX Impact Driver (DCF787D1)

The DEWALT 20V MAX Impact Driver (DCF787D1) is the standard-bearer in this comparison for a specific buyer: anyone already in the DeWalt 20V MAX ecosystem. The DCF787 runs a brushless motor, ships with DeWalt’s published 1,825 in-lbs of torque, and fits every 20V MAX and FLEXVOLT battery in the platform. DeWalt’s published torque figures for the DCF787 series have been verified against owner reports across multiple long-term threads , the number holds up under typical DIY and light framing loads.

Three-speed mode selection gives the DCF787 real range. At the lowest speed setting, it handles smaller screws and cabinet hardware without stripping. At full speed, owner reports confirm it drives structural screws and lag bolts without significant hesitation. The ergonomics are compact , DeWalt designed the DCF787 to fit in tight spaces, and the short nose-to-battery profile comes up repeatedly in owner reviews as a practical advantage for cabinet work and framing bays.

The single-battery configuration means buyers who don’t already own 20V MAX cells will want to factor in a second battery. For an established DeWalt user, that’s a non-issue , the DCF787 runs on cells already in their bag. For someone starting from scratch, the CRAFTSMAN combo set delivers more total hardware per purchase. The DCF787 earns its recommendation based on platform trust, brushless motor longevity, and DeWalt’s service and parts network.

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Which Should You Pick?

The decision branches at two points: whether you need both a drill and an impact driver, and whether you’re already committed to a battery platform.

Start with both tools and no existing platform: The CRAFTSMAN V20 MAX combo is the clear answer. Two tools, two batteries, and a bag , and you’re buying into a real platform that’s expandable. The brushed drill is a trade-off, but it’s the right trade-off at this entry point.

You already own DeWalt 20V MAX batteries: The DCF787D1 is the straightforward pick. Add a brushless impact driver to your bag without the overhead of a new battery ecosystem. Platform consistency matters more than a torque-spec delta between two mid-range drivers.

You want a standalone high-torque impact driver and don’t have platform loyalty: The Robustrue’s specs are real, and the brushless motor is the correct architecture. The risk is proprietary battery dependency. If the plan is to keep the tool set small and the Robustrue’s cell availability at the time of purchase looks solid, the spec-per-dollar case is reasonable.

The honest comparison: DeWalt’s platform infrastructure , service, battery availability, tool expansion , tips the scales for any buyer who anticipates growing their tool set. The Robustrue makes more sense as a one-tool purchase for a task-specific user than as the foundation of a workshop.

Buying Guide

Drill vs. Impact Driver , What the Tools Actually Do

These are different tools for different fastener tasks. A drill driver applies continuous rotational torque , it’s the right tool for boring holes, driving screws that require controlled depth, and working with smaller fasteners where stripping is a concern. An impact driver delivers rotational torque in rapid concussive bursts, making it more effective at driving large fasteners, structural screws, and lag bolts without the wrist torque that strains under high-load drilling.

For general DIY work, both have a place. Furniture assembly and cabinet installation favor the drill’s precision. Deck framing and structural fastening favor the impact driver’s output. Browsing the Drills & Drivers category shows how the tool types split across application.

Motor Type: Brushed vs. Brushless

Brushless motors run more efficiently, generate less heat under sustained load, and typically outlast brushed motors in long-term owner reports. The difference is most noticeable when running consecutive fasteners over long sessions , brushed motors lose efficiency as they heat up, brushless motors do not.

For occasional DIY use, a brushed drill is a reasonable trade-off at a lower price point. For a standalone impact driver that sees regular use, owner consensus consistently favors brushless. Both the DeWalt DCF787 and the Robustrue run brushless on the driver side.

Battery Platform and Long-Term Cost

Platform decisions compound over time. DeWalt’s 20V MAX and CRAFTSMAN’s V20 both use widely available cells stocked at major retailers and online. Proprietary platforms , like the Robustrue’s 21V battery , require purchasing directly from the brand or through limited third-party channels.

Owner threads on r/Tools flag the battery availability question repeatedly: a tool that runs an orphaned battery system becomes a single-battery liability. Buying into a major platform adds upfront cost but reduces the long-term risk of a dead tool waiting on a proprietary cell.

Torque and Speed Modes

Published torque figures are a useful comparison point, not a guarantee of real-world performance. DeWalt’s published figures for the DCF787 series have strong owner-report corroboration. The Robustrue’s 2,035 in-lbs claim is harder to verify against a deep owner thread , the product is newer to market.

Speed modes matter more than maximum torque for most DIYers. Three-speed selection lets you dial down for smaller fasteners and cabinet hardware without the risk of stripping. Both the DCF787 and Robustrue offer three-speed modes; the CRAFTSMAN combo’s driver runs two speeds.

Warranty and Service Coverage

CRAFTSMAN and DeWalt both carry multi-year warranties backed by established service networks in North America. Long-term owner threads consistently report that warranty claims are processed through retail channels without significant friction.

DTC brands vary. The Robustrue’s warranty terms at time of purchase should be verified directly , owner consensus on newer DTC brands is limited by shorter track records. For a tool expected to see regular use, warranty coverage and parts availability are practical factors, not marketing details.

Frequently Asked Questions

Can I use an impact driver instead of a drill for all my projects?

An impact driver handles fastener driving very well but is not a substitute for a drill in every task. Drilling clean holes in wood or metal requires a standard drill driver with a keyed or keyless chuck , impact drivers use a 1/4-inch hex shank and are not designed for standard twist bits under sustained boring loads. For most general DIY work, a combo set like the CRAFTSMAN V20 MAX covers both applications without requiring a second purchase.

Is the DeWalt DCF787 compatible with my existing 20V MAX batteries?

Yes. The DCF787 runs on any DeWalt 20V MAX or FLEXVOLT battery, including compact 1.3Ah and 2.0Ah cells and the higher-capacity packs. DeWalt’s published compatibility data confirms this across the 20V MAX lineup. If you already own batteries from another DeWalt 20V MAX tool, the DCF787 adds a brushless impact driver to your kit without requiring new cells.

What does “21V” on the Robustrue actually mean compared to DeWalt’s “20V MAX”?

Both ratings refer to the same physical battery technology. Lithium-ion cells measure 21 volts at full charge and discharge to approximately 18 volts under load , “20V MAX” reflects the nominal working voltage, while “21V” reflects the peak charge voltage. The practical difference in performance between these two ratings is negligible. The more important variable is whether the battery platform is open (compatible with other tools) or proprietary.

Which tool is better for driving deck screws and structural fasteners?

An impact driver is the correct tool for structural fasteners. The concussive torque output , particularly the DCF787’s published 1,825 in-lbs or the Robustrue’s claimed 2,035 in-lbs , drives long screws and lag bolts through dimensional lumber without the cam-out risk that comes with a standard drill at high torque. Owner reports on r/Tools confirm both the DEWALT 20V MAX Impact Driver and the Robustrue handle deck framing loads without significant strain.

Should I buy a combo set or individual tools?

The combo set is the better starting point for anyone without an existing battery platform. The CRAFTSMAN V20 MAX combo delivers two tools and two batteries in one purchase , the value density is hard to match buying individual tools at mid-range price bands. Once you have a platform established and specific performance gaps appear, individual tool upgrades , like adding the DCF787 to an existing DeWalt kit , make more sense than replacing an entire combo set.