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Generic 2545-20 for Milwaukee M12 FUEL 12V Brushless vs FLEX 24V Brushless Cordless Orbital Variable Speed

Updated August 2026 — Generic 2545-20 for Milwaukee M12 FUEL 12V Brushless wins on versatility and durability, FLEX 24V Brushless Cordless Orbital Variable Speed wins on warranty.

The Milwaukee 2545-20 offers superior cutting power and precision, while the FLEX 24V provides excellent battery efficiency at a lower price.

Why Generic 2545-20 for Milwaukee M12 FUEL 12V Brushless is better

Cutting Power

Milwaukee achieves 3000 strokes per minute.

Speed Settings

Milwaukee offers five speed adjustments.

Ergonomics

Milwaukee has a low vibration design for better control.

Why FLEX 24V Brushless Cordless Orbital Variable Speed is better

Price

FLEX is priced at $149.00, significantly cheaper.

Battery Power

FLEX uses a 24V battery for longer runtime.

Blade Change

FLEX features a one-touch blade eject system.

Overall score

Generic 2545-20 for Milwaukee M12 FUEL 12V Brushless
85
FLEX 24V Brushless Cordless Orbital Variable Speed
75

Specifications

SpecGeneric 2545-20 for Milwaukee M12 FUEL 12V BrushlessFLEX 24V Brushless Cordless Orbital Variable Speed
Motor TypeBrushlessSensor-free
Speed Settings54
Max Speed3000 SPMN/A
Base PlateAluminumDual-guide
WarrantyN/A5 years

Dimension comparison

Generic 2545-20 for Milwaukee M12 FUEL 12V BrushlessFLEX 24V Brushless Cordless Orbital Variable Speed

Overview of the Tools

The 2545-20 for Milwaukee M12 FUEL and the FLEX 24V Brushless Cordless Orbital Variable Speed D-Handle Jig Saw are both high-quality jigsaws designed for professional use, offering distinct features suited to different user needs. The Milwaukee model is priced at $299.97, while the FLEX option comes in significantly lower at $149.00, making it about 50% cheaper. This price difference may influence budget-conscious users looking for reliable performance.

Motor Performance

When it comes to motor performance, the Milwaukee 2545-20 features a brushless motor that can achieve up to 3000 strokes per minute, providing powerful cutting ability across various materials, including hardwoods and metals. In contrast, the FLEX 24V model employs a sensor-free brushless motor that is designed for higher efficiency and power, although it does not specify maximum stroke rates. This difference suggests that users who prioritize speed may lean towards the Milwaukee model, while those interested in optimized efficiency might prefer the FLEX.

Versatility in Cutting

The Milwaukee jig saw offers a variable speed dial with five adjustment settings ranging from 3000 to 800 strokes per minute, along with orbital action that has five adjustment levels. This allows for greater versatility in cutting applications. On the other hand, the FLEX model provides four speeds with an auto mode for precision cuts, which offers a tailored cutting experience. While both tools excel in versatility, the Milwaukee's broader range of speed adjustments may appeal to users needing specific cut characteristics.

Design and Ergonomics

In terms of design and ergonomics, the Milwaukee 2545-20 features a compact size with a low vibration and an ergonomic barrel-grip design, enhancing control during operation. Its durable aluminum base plate includes bevel detents at multiple angles for angled cuts. Conversely, the FLEX 24V boasts a D-handle design and a dual-guide blade holder that ensures maximum cut accuracy. While both tools are designed for user comfort, the Milwaukee's features may provide a slight edge in terms of stability and control during intricate cuts.

Ease of Use

Both models are designed with ease of use in mind, but they approach it differently. The Milwaukee jig saw includes a tool-less blade change feature and an on/off LED light to improve visibility. Meanwhile, the FLEX model has a one-touch blade eject system, making blade changes quick and straightforward. For users who frequently change blades, the FLEX's one-touch feature may prove to be more convenient, while the Milwaukee's additional visibility aids could enhance cutting precision in low-light conditions.

Battery Compatibility and Power

The Milwaukee 2545-20 operates on a 12V battery system, which is optimized for power and performance. In contrast, the FLEX model uses a 24V lithium battery, touted to provide 20% more power, 25% longer runtime, and up to 50% faster charging when paired with its dual fan chargers. This means that while the Milwaukee is powerful for its class, the FLEX is built to maximize efficiency and performance, particularly for users who already have other FLEX 24V tools, making it a more versatile addition to their toolkit.

Warranty and Support

FLEX provides a 5-year limited warranty upon registration, offering peace of mind for users who invest in their tools. The Milwaukee model does not specify warranty terms in the provided data, which could be a consideration for potential buyers. A longer warranty like that of the FLEX may influence purchasing decisions, especially for users who prioritize long-term reliability and support for their tools.

Which should you buy?

Ultimately, the decision between the Milwaukee 2545-20 and the FLEX 24V Brushless Cordless Jig Saw comes down to individual needs and preferences. If maximum cutting power and precision are your top priorities, the Milwaukee model may be worth the higher price. However, if you are looking for a more affordable option with impressive runtime and battery efficiency, the FLEX could be the better choice. Both tools have unique features that cater to various user requirements, ensuring that either choice can serve a professional well on the jobsite.