4.0Ah vs 2.0 Ah Power Tool Combo Kits: Which Should You Buy?

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.

As an Amazon Associate we earn from qualifying purchases. Links on this page are affiliate links.

You are looking at a 40ah vs 20 ah power tool combo kit comparison. Both kits use brushless motors for efficiency and include a drill and impact driver. The main difference is scale. One offers a five-tool set with higher capacity batteries for extended runtime. The other provides a compact two-tool set with smaller batteries. You should choose based on your project scope and need for portability.

Kit Size

5-Tool

2-Tool

Battery Capacity

4.0Ah and 2.0Ah

2.0Ah

Voltage

24V

V20

Motor Type

Brushless

Brushless

Chuck Size

1/2 in.

1/2 Inch

Choose the first if

• You need a circular saw and multi-tool for diverse projects.
• You want longer runtime with a 4.0Ah battery option.
• You prefer a 24V system for potentially higher power output.

Choose the second if

• You only require a drill and impact driver.
• You want a lighter kit that weighs 8.2 pounds.
• You prefer a more compact package for storage.

Verdict

Choose the Greenworks kit if you need a wider variety of tools and longer battery life for all-day work. Select the Craftsman kit if you only need basic drilling and fastening capabilities with a smaller, lighter footprint.

Comparing 4.0Ah and 2.0Ah Kits

Battery capacity

Edge: Greenworks 24V 5-Tool Brushless Combo Kit

The Greenworks kit includes both a 4.0Ah and a 2.0Ah battery, offering a total of 6.0Ah of stored energy. This dual-battery setup allows you to swap a charged battery for a depleted one, minimizing downtime during long projects. The Craftsmans kit provides two 2.0Ah batteries, totaling 4.0Ah. While both kits ensure you have backups, the Greenworks higher capacity battery provides significantly more runtime per charge. You get extended tool life and fade-free power with the larger cell, making it better for jobs that drain energy quickly.

Kit size

Edge: Greenworks 24V 5-Tool Brushless Combo Kit

Tool selection varies drastically between these two options. The Greenworks package is a five-tool combo kit. It includes a drill, impact driver, circular saw, multi-tool, and a work light. This variety covers cutting, fastening, and general maintenance tasks in one purchase. The Craftsmans offering is a strict two-tool kit. It contains only a drill driver and an impact driver. If you need to cut wood or perform oscillating tasks, you must buy those tools separately. The Greenworks kit offers more versatility out of the box for diverse household projects.

Motor type

Edge: Tie

Both manufacturers utilize brushless motor technology in their core power tools. This design eliminates carbon brushes, reducing friction and wear. The result is cooler operation, extended tool life, and improved efficiency. The Greenworks circular saw and multi-tool also feature brushless motors, ensuring consistent performance across the entire five-tool lineup. The Craftsmans drill and impact driver also benefit from this efficient drive system. Since both brands prioritize brushless technology for their main driving tools, you get similar benefits regarding runtime and durability in the primary functions of drilling and fastening.

Chuck size

Edge: Tie

The chuck size determines the maximum drill bit and accessory diameter you can use. Both the Greenworks drill and the Craftsmans drill feature a 1/2-inch keyless chuck. This is the standard size for most heavy-duty applications. It allows you to use larger masonry bits, wood augers, and hex shank drivers without adapters. The Craftsmans impact driver uses a 1/4-inch hex chuck, which is standard for quick bit changes. The Greenworks impact driver also uses a 1/4-inch hex chuck. For the primary drilling capability, both kits offer the same maximum bit capacity for your most demanding holes.

Weight

Edge: CRAFTSMAN V20 Drill and Impact Driver Kit

Portability and ease of handling depend heavily on the weight of the tools and the kit. The Greenworks five-tool kit weighs 21 pounds. This includes the larger batteries, the circular saw, and the multi-tool. The Craftsmans two-tool kit weighs only 8.2 pounds. It contains just the drill, impact driver, and two smaller batteries. If you are carrying tools up a ladder or working overhead for extended periods, the lighter Craftsmans kit reduces fatigue. The Greenworks kit is heavier due to the additional tools and larger battery capacity.

Choose Your Kit Based on Scope

Professionals needing diverse tools for all-day work

Our pick: Greenworks 24V 5-Tool Brushless Combo Kit

This five-tool kit includes a circular saw, multi-tool, and flashlight alongside the drill and impact driver. The 4.0Ah battery provides extended runtime for demanding jobs. You get a complete set for cutting, fastening, and finishing tasks without buying separate tools. The brushless motors offer efficiency and durability for daily professional use.

DIYers wanting a compact, lightweight starter set

Our pick: CRAFTSMAN V20 Drill and Impact Driver Kit

This two-tool kit weighs only 8.2 pounds, making it easy to handle and store. It includes a 1/2-inch drill driver and an impact driver with 1,800 in-lbs of torque. The 2Ah batteries are sufficient for occasional home repairs. You get the essential tools for basic drilling and screwdriving without extra bulk or complexity.

Users requiring high torque for heavy fastening

Our pick: Greenworks 24V 5-Tool Brushless Combo Kit

The Greenworks impact driver delivers 1,950 in-lbs of torque, which exceeds the Craftsman’s 1,800 in-lbs. This higher torque helps you drive larger fasteners into tough materials with ease. The 4.0Ah battery also supports longer continuous operation. You benefit from more power and longer runtime when tackling heavy-duty fastening tasks.

Specifications side by side

Spec	Greenworks 24V 5-Tool Brushless Combo Kit	CRAFTSMAN V20 Drill and Impact Driver Kit
Voltage	24V	V20
Kit Size	5	Two Power Tools
Included Tools	–	Drill Driver, Impact Driver
Motor Type	Brushless	–
Battery Capacity	4.0Ah, 2.0Ah	2Ah
Battery Count	2	2
Chuck Size	–	1/2 Inch
Power Source	–	Cordless
Configuration	Kit	Kit
Dimensions	19.8 × 11.2 × 8.8 inches	12.3 × 4.96 × 8.86 inches
Weight	21 pounds	8.2 pounds
Size	5PCS Combo Kits	–
Model	CK351	CMCK201D2
Color	–	Black, Red

Frequently asked questions

Is a 4.0Ah battery worth the extra weight?

Yes, if you need extended runtime. The Greenworks 24V 5-Tool Brushless Combo Kit includes a 4.0Ah battery. This capacity supports longer continuous use for demanding jobs. The trade-off is weight. The full kit weighs 21 pounds. You should consider if your projects require all-day power or if lighter tools suffice.

What tools come in the Greenworks 5-tool kit?

The Greenworks 24V 5-Tool Brushless Combo Kit includes an impact driver, circular saw, work light, and oscillating multi-tool. It also includes a drill driver. This setup provides versatility for diverse DIY projects. You get a comprehensive set rather than just basic drilling and driving tools.

Does the CRAFTSMAN V20 kit include a circular saw?

No, the CRAFTSMAN V20 Drill and Impact Driver Kit does not include a circular saw. It contains only a drill driver and an impact driver. This 2-tool configuration is designed for lightweight setups. It suits users who prioritize portability and do not need the extended runtime of higher capacity batteries.

How heavy is the Greenworks 24V combo kit?

The Greenworks 24V 5-Tool Brushless Combo Kit weighs 21 pounds. This includes all five tools and the batteries. The dimensions are 19.8 inches in length, 11.2 inches in width, and 8.8 inches in height. You should plan your storage and transport accordingly due to this substantial weight.

Is the CRAFTSMAN V20 kit suitable for heavy duty work?

The CRAFTSMAN V20 Drill and Impact Driver Kit is not designed for heavy duty work. It features a 2.0 Ah battery, which limits runtime. The kit weighs only 8.2 pounds. It is ideal for users who prioritize portability and sufficient torque for deck screws rather than extended continuous operation.

Can I swap batteries between the Greenworks 4.0Ah and 2.0Ah?

The Greenworks 24V 5-Tool Brushless Combo Kit includes both a 4.0Ah and a 2.0Ah battery. You can swap them to minimize downtime. This dual-battery setup allows you to use a charged battery while the other charges. It ensures you have power for diverse DIY projects without waiting.

What is the model number for the Greenworks 5-tool kit?

The model number for the Greenworks 24V 5-Tool Brushless Combo Kit is CK351. It is a 24V system with brushless motors. This model includes an impact driver, circular saw, work light, and oscillating multi-tool. It is positioned as the top pick for DIYers needing a versatile set.

See also

• 40ah vs 15ah power tool combo kit
• best power tool combo kits with 2 0 ah
• nb power 135mm 3000w conversion kit vs 20 4 0 rear