maybe I suggest you ask Benchmade at Contact Us
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Yes, the Benchmade Infidel Auto Out the Front 3.9" D2 Steel Blade, Aluminum Grip, has a strong likelihood of penetrating 1/4" plywood.
Here's why:
Design for Piercing: The Benchmade Infidel features a double-edged dagger blade with a sharp, piercing tip, according to Kennesaw Cutlery and the GOVX blog.
D2 Steel: The D2 tool steel blade with a hardness of 60-62 HRC, says Benchmade and Knife Informer, is known for its excellent edge retention and wear resistance, making it suitable for demanding tasks.
Deployment Mechanism: While the spring action alone may not be enough for deep penetration, the fully deployed and locked blade, combined with manual force, can achieve significant piercing power, notes Quora quora.com/How-powerful-is-the-spring-action-on-an-OTF-switchblade.
Stability and Strength: Benchmade Infidel knives, like other high-quality OTFs, are known for their stable construction and robust blade locks, allowing them to withstand considerable force when penetrating materials like wood, according to a user.

The Benchmade Infidel is designed to be a robust knife and is capable of penetrating materials like plywood, including 1/4 inch thickness, when activated against it. However, the effectiveness can depend on the angle and force applied during use.
The only way to know for sure is to try it.

All info available suggests it is likely to penetrate 1/4” plywood.

Hi Albert and welcome. Reviews suggest that it can easily penetrate tough barriers like 0.25” heavy cardboard. While there's no direct information regarding its ability to penetrate 1/4 inch of plywood when held against it and activated, the knife's design for piercing, sharp edge, and powerful deployment mechanism suggest it is likely to penetrate. Cheers, stay safe and enjoy!