As Amazon Associates, we earn from qualifying purchases. This means we may receive a small commission at no extra cost to you if you click through and make a purchase.
If you already have a Greenworks 24V battery on the shelf, the next tool you add is usually one that spins fasteners: something to sink deck screws, snug down furniture bolts or break loose the lug nuts on a flat tire. The catch is that “impact” covers two quite different tools. An impact driver takes 1/4-inch hex bits and is built for screws and small lag bolts, while an impact wrench takes sockets on a square anvil and is built for nuts and bolts. Picking the wrong one means either stripping screw heads or struggling with a wheel that will not budge.
According to the listings, the Greenworks range covered here splits into three groups. There are two 1/4-inch hex impact drivers sold as kits, a drill and impact driver combo for people who want both tools at once, two 3/8-inch impact wrenches for compact socket work, and one 1/2-inch impact wrench sold as a bare tool for the heaviest fastening jobs around the house and garage. All six run on the same 24V lithium-ion platform, so the battery question is mostly about how many you need rather than which kind.
Greenworks Impact Driver and Wrench Lineup at a Glance
| Model | Drive type | Listed torque | Battery in box |
|---|---|---|---|
| 1/2″ Impact Wrench with 1,430 ft-lb (IW51500) | 1/2 in. square | 1,430 ft-lb | No, tool only |
| 24V Brushless Impact Driver Kit | 1/4 in. hex collet | 1,950 in-lb | Two 2Ah |
| 24V 3/8″ Brushless Impact Wrench (PA147K) | 3/8 in. anvil | 150 ft-lb | One 2.0Ah |
| 24V MAX Drill and Impact Driver Combo | 1/2 in. chuck and 1/4 in. hex | 310 in-lb drill, 1,950 in-lb driver | Two 2Ah |
| 24V Brushless Impact Driver with USB-C Battery | 1/4 in. hex collet | 1,900 in-lb | One 2.0Ah USB-C |
| 24V 3/8″ Brushless Impact Wrench (IWG406) | 3/8 in. anvil | 150 ft-lb | One 2.0Ah |
The Models in Detail
1/2″ Impact Wrench with 1,430 ft-lb Breakaway Torque Offers precise fastening control via 3-speed electronic power selection
Check price on Amazon 4.9 out of 5 — average from Amazon buyers
The 1/2″ Impact Wrench with 1,430 ft-lb Breakaway Torque is the heavy hitter of the group. Sold under the PowerAll Pro name as model IW51500, it pairs a 24V brushless motor with a 1/2-inch drive and a listed 1,430 ft-lb of breakaway torque at 2,000 RPM. Three-speed electronic power selection lets you step the output down when you are snugging nuts rather than freeing them, and a built-in LED light helps when you are working inside a wheel well.
This is the tool for the household that changes its own tires, rotates wheels on a trailer or deals with rusted hardware on outdoor equipment. It is sold as a bare tool, so the battery and charger have to come from your existing 24V kit or be bought separately. The tool carries a 5-year limited warranty, the longest mentioned in this lineup. For screws and furniture assembly it is simply the wrong tool; one of the hex drivers below will serve you far better.
Greenworks 24V Brushless Cordless Impact Driver Kit 1,900 in-lbs Torque Tackle stubborn bolts and heavy-duty fastening
Check price on Amazon 4.4 out of 5 — average from Amazon buyers
Best for: Home repairs plus phone charging
Pros
- 1,900 in-lb torque, 3,600 RPM
- USB-C battery doubles as power bank
- 10-piece double-sided bit set
Cons
- Single battery in the box
- IPM figure differs across listing
Best for: Deck screws and weekend assembly jobs
Pros
- 1,950 in-lb torque
- Two 2Ah batteries and charger
- 8 bits, bag and belt clip
Cons
- Listing gives conflicting RPM figures
The Greenworks 24V Brushless Cordless Impact Driver kit is the straightforward choice for screw-driving jobs. The listing gives 1,950 in-lbs of torque, 3,500 IPM and a 1/4-inch hex collet for quick bit swaps, plus a variable speed trigger and a fast mode switch. The box includes two 2Ah batteries, a 2A charger, an 8-piece bit set, a tool bag and a belt clip, which covers most people starting from nothing.
One inconsistency is worth knowing: the feature list quotes 2,600 RPM while the description and one spec line quote 2,800 RPM, and the specs mention three speeds without explaining how they are selected beyond the fast mode switch. Either way, this is the driver to reach for when building a deck, hanging shelving or putting together flat-pack furniture with long screws. The listing describes it as 35% more compact than similar units and covers it with a 3-year limited tool and battery warranty.
Greenworks 24V 3/8″ Brushless Cordless Impact Wrench (PA147K) 25% more compact and 20% lighter than previous Greenworks model
Check price on Amazon 4.8 out of 5 — average from Amazon buyers
Best for: Compact socket work under the car
Pros
- 150 ft-lb torque
- 9 lb, 5.04 in. long
- Battery and charger included
Cons
- Model number differs between title and specs
Best for: Light automotive and bike work
Pros
- 150 ft-lb brushless torque
- 3/8 in. anvil with friction ring
- About 2 lb tool weight
Cons
- Too light for stubborn lug nuts
The Greenworks 24V 3/8″ Brushless Cordless Impact Wrench is a compact socket tool rated at 150 ft-lbs. It has a 3/8-inch anvil with a friction ring for easy socket changes, variable speed from 0 to 2,400 RPM and a non-slip grip. The listing says it is 25% more compact and 20% lighter than an earlier Greenworks model, and gives the weight as 2 pounds. A 2.0Ah battery and a compact charger are included.
A 3/8-inch wrench suits bike repairs, lawn mower blade bolts, furniture with hex bolts and general automotive work away from the wheels. At 150 ft-lbs it will not match the 1/2-inch model on lug nuts, so if tire changes are the main reason you are shopping, look at the IW51500 instead.
Greenworks 24V MAX Cordless Brushless Drill and Impact Driver Combo 2 speed transmission (0-380RPM/0-1450RPM), 310 in-lbs (35Nm) torque, 18 + 1
Check price on Amazon 4.0 out of 5 — average from Amazon buyers
Best for: First-time owners starting the 24V platform
Pros
- Drill and impact driver together
- 18+1 clutch and 1/2 in. chuck
- Two 2Ah batteries included
Cons
- Impact torque figures conflict in listing
The Greenworks 24V MAX Cordless Brushless Drill and impact driver combo gives you both halves of a basic tool kit in one box. The drill has a 1/2-inch keyless chuck, a two-speed transmission (0-380 and 0-1,450 RPM), 310 in-lbs of torque and an 18+1 clutch for controlled screw driving. The impact driver has a 1/4-inch quick-release hex collet, a variable speed trigger, 3,500 IPM and 2,800 RPM.
The impact driver’s torque is listed as 1,950 in-lbs in the features, but the included components line calls it an 1,800 in-lb driver, so treat the exact figure with caution. Weight is also given two ways: 4.7 lbs for the kit and 2.3 pounds in the specs. The box includes two 24V 2Ah batteries, a 2A charger, a tool bag and two dual-head driving bits. If you need to drill pilot holes as well as drive screws, this Greenworks 24V drill combo is the most complete starting point in the list.
Because the batteries are shared across the platform, the same packs can later run outdoor gear, which matters if you are weighing yard tools such as a Greenworks 60V cordless string trimmer against staying on 24V.
Greenworks 24V Brushless Cordless Impact Driver with USB-C Battery Highly Efficient Brushless Motor
Check price on Amazon 4.5 out of 5 — average from Amazon buyers
The Greenworks 24V Brushless Cordless Impact Driver with the USB-C battery is the newest take on the hex driver. The listing gives 1,900 in-lbs of torque, a 3,600 RPM top speed and a 1/4-inch quick-release collet. Its 2.0Ah battery is described as a 12,000mAh power bank with USB-C, and a 30W USB-C charger and 3-foot braided cable are included, along with a 10-piece double-sided impact bit set.
The impact rate is quoted as 3,800 IPM in the features and 4,500 IPM in the description, and the weight is given as both 2 lbs and 2.14 lbs, so the listing is not fully consistent. The body is 4.7 inches front to back. This suits someone who wants one battery that can charge a phone on a job site or during a power cut. Only one battery comes in the box, so heavy deck projects will go more smoothly with the two-battery kit above.
Greenworks 24V 3/8″ Brushless Cordless Impact Wrench (IWG406) 25% more compact and 20% lighter than previous Greenworks model
Check price on Amazon 4.4 out of 5 — average from Amazon buyers
The Greenworks 24V 3/8″ Brushless Cordless Impact Wrench shares its features with the PA147K: 150 ft-lbs, a 3/8-inch anvil with friction ring, 0 to 2,400 RPM and a comfort grip. This listing adds a length of 5.04 inches and a weight of 1.9 pounds, and includes a 2.0Ah battery and charger.
The title names model PA147K while the specification table lists IWG406, so the listing does not make clear whether these are the same tool under two numbers. Buyers who care about the exact model should confirm with the seller. In practice it suits the same jobs as the other 3/8-inch wrench: compact socket work under the hood, on mower decks or on equipment such as a Greenworks 2300 PSI electric pressure washer frame.
Matching a Model to Your Setup
- Changing your own tires or freeing rusted trailer nuts: the 1/2″ Impact Wrench with 1,430 ft-lb, paired with a battery you already own.
- Building a deck or fence with long screws over a weekend: the 24V Brushless Impact Driver Kit, because two batteries let one charge while you work.
- Setting up a first tool kit for furniture assembly and pilot holes: the 24V MAX Drill and Impact Driver Combo.
- Small household repairs with a phone that needs charging nearby: the 24V Brushless Impact Driver with USB-C battery.
- Bike work, mower blade bolts or brackets under the car: either 3/8″ Brushless Impact Wrench, PA147K or IWG406.
Before You Buy
Several listings leave gaps. The 1/2-inch wrench does not state its weight, length or the torque at each of its three speeds, and the 3/8-inch wrenches do not give an impact rate. None of the listings specify what size or brand of sockets work best, and the 3/8-inch and 1/2-inch wrenches do not include sockets. The combo kit and the first impact driver kit give conflicting torque and speed figures in different parts of their listings.
Warranty terms also vary: the 1/2-inch wrench cites a 5-year limited tool warranty, the first driver kit and combo cite 3 years on tool and battery, and the 3/8-inch wrenches and the USB-C driver listings do not state warranty length. If you store tools alongside other outdoor gear, such as a Greenworks 80V chainsaw, remember that batteries only swap within the same voltage.
FAQ
What is the difference between an impact driver and an impact wrench?
An impact driver uses a 1/4-inch hex collet for screwdriver bits and suits screws and small lag bolts. An impact wrench uses a square anvil for sockets and is made for nuts and bolts. In this lineup the drivers are rated in in-lbs and the wrenches in ft-lbs, which reflects that difference in job.
Which Greenworks impact should I buy for tire changes?
The 1/2-inch Impact Wrench with its listed 1,430 ft-lb breakaway torque is the only model here aimed at lug nuts. The 3/8-inch wrenches, at 150 ft-lbs, are meant for lighter socket work.
Does the 1/2-inch impact wrench come with a battery?
No. The listing states that the battery and charger must be purchased separately, so it makes most sense for owners who already have 24V packs.
Can I use one 24V battery across all these tools?
All six listings describe 24V tools on the Greenworks platform, and the USB-C driver listing says PowerAll 24V batteries power over 200 tools. The listings do not spell out compatibility between the USB-C battery and every older tool, so check before relying on it.
Is the combo kit worth it over a single impact driver?
If you need to drill holes as well as drive screws, yes. The combo adds a 1/2-inch chuck drill with an 18+1 clutch, which an impact driver alone cannot replace for precise or delicate work.