Dong Cheng 20V Brushless Jigsaw, vs Kobalt KJS 324B-03 24-Volt Max Variable Speed
Updated August 2026 — Dong Cheng 20V Brushless Jigsaw, leads on accessories and battery.
The Dong Cheng jigsaw offers superior cutting performance and a more comprehensive accessory package, making it the better choice for serious users.
Why Dong Cheng 20V Brushless Jigsaw, is better
Cutting Speed
Dong Cheng has a max speed of 3500 SPM vs Kobalt's 3000 SPM.
Stroke Length
Dong Cheng has a stroke length of 26mm compared to Kobalt's 25.4mm.
Included Accessories
Dong Cheng includes a complete set with battery, charger, and blades.
Why Kobalt KJS 324B-03 24-Volt Max Variable Speed is better
Price
Kobalt is priced at $99.00, which is slightly cheaper than Dong Cheng.
Brand Popularity
Kobalt has a higher sales rank at 145,475.
Convenience Features
Kobalt offers tool-free blade changes and adjustments.
Overall score
Specifications
| Spec | Dong Cheng 20V Brushless Jigsaw, | Kobalt KJS 324B-03 24-Volt Max Variable Speed |
|---|---|---|
| Max Speed | 3500 SPM | 3000 SPM |
| Stroke Length | 26mm | 25.4mm |
| Battery Size | 4Ah | Unknown |
| Orbital Action | 4 positions | 4 positions |
| Weight | Lightweight | Moderate |
Dimension comparison
Overview of the Dong Cheng 20V Brushless Jigsaw
The Dong Cheng 20V Brushless Jigsaw is a powerful tool designed for various cutting tasks, boasting a range of features that enhance its usability. Priced at $99.99, it is equipped with a robust brushless motor that delivers stable and efficient power. With a stroke length of 26mm and a variable speed range of 800-3500 SPM, this jigsaw is engineered to tackle materials like wood, aluminum, and steel with precision. The inclusion of a 4Ah battery and various accessories adds significant value, making it a comprehensive option for DIY enthusiasts and professionals alike.
Overview of the Kobalt KJS 324B-03
The Kobalt KJS 324B-03 is another strong contender in the jigsaw market, available for $99.00, making it about 1% cheaper than the Dong Cheng model. It features a 24-volt max brushless motor, which ensures extended runtime and longevity. With a stroke length of 1 inch and a maximum speed of 3,000 SPM, it offers decent cutting performance. The Kobalt model also provides four-position orbital action and tool-free adjustments for ease of use, catering to users who value convenience in their projects.
Cutting Performance
When comparing cutting performance, the Dong Cheng jigsaw stands out with its higher maximum speed of 3,500 SPM compared to Kobalt's 3,000 SPM. This 500 SPM difference can lead to faster cuts, especially in thicker materials. Additionally, the Dong Cheng's 26mm stroke length provides a slight edge in terms of cutting depth, allowing it to handle a broader range of materials more effectively. The Kobalt's 1-inch stroke length may limit its capabilities in more demanding cutting scenarios, making the Dong Cheng a preferable choice for those who prioritize cutting efficiency.
User-Friendly Features
Both jigsaws offer user-friendly features, but they cater to different preferences. The Dong Cheng model includes dual LED lights for improved visibility during cuts and a dust blower that keeps the cutting line clear. This attention to detail enhances the overall cutting experience. In contrast, the Kobalt jigsaw emphasizes convenience with tool-free blade changes and easy bevel adjustments. While both products are designed for ease of use, the Dong Cheng’s additional features might appeal more to users who often work in dimly lit conditions or require cleaner cuts.
Portability and Design
In terms of portability, both jigsaws are cordless, enhancing their usability on various job sites. The Dong Cheng comes with a complete set, including a 4Ah battery, charger, six blades, a guide rail, and a tool bag, making it ready for use right out of the box. This comprehensive package is ideal for users who want a portable solution that includes all necessary accessories. The Kobalt, while it also includes relevant accessories, is a refurbished product, which means its condition might not be as pristine as that of a new tool. The aesthetic design of Kobalt's blue and black color scheme may appeal to some users, but the overall functionality of the Dong Cheng could be more advantageous.
Battery Life and Runtime
The Dong Cheng jigsaw is powered by a 4Ah battery, which is likely to provide longer run times compared to the Kobalt's unspecified battery size but still operates on a 24-volt system. While the exact runtime for each tool isn't provided, the larger capacity of the Dong Cheng's battery suggests it may sustain longer working periods between charges. Users who frequently tackle large projects may prefer the Dong Cheng for its potential longevity, especially since it comes with a charger included in the package.
Price Comparison
In terms of pricing, the Dong Cheng jigsaw is listed at $99.99, while the Kobalt jigsaw is slightly cheaper at $99.00. This price difference of 99 cents makes the Kobalt about 1% less expensive, appealing to budget-conscious shoppers. However, considering the range of features and accessories provided with the Dong Cheng model, the extra cost may be justified for those looking for a more comprehensive tool. The Kobalt's refurbished status could also factor into its pricing strategy, which may deter some buyers seeking new tools.
Sales and Popularity
The sales ranks indicate a notable difference in market performance, with the Dong Cheng jigsaw ranked at 311,516 and the Kobalt at 145,475. This suggests that the Kobalt jigsaw is more popular among consumers, potentially due to its established brand presence and appeal in the market. However, popularity should not solely dictate choice; the specifications and features of each product should be the primary focus for buyers seeking the best tool for their needs.
Which should you buy?
Choosing between the Dong Cheng 20V Brushless Jigsaw and the Kobalt KJS 324B-03 ultimately depends on your specific needs. If cutting performance, battery life, and included accessories are your top priorities, the Dong Cheng jigsaw may be the better option despite its slightly higher price. Conversely, if you prefer a more affordable choice and value convenience features, the Kobalt jigsaw could serve you well. Consider your project requirements and budget before making a decision, as both tools have distinct advantages that cater to different types of users.

