Civivi C907A
Civivi C907A is unmatched in terms of cheap blades. It belongs to the bargain division of WE Cutlery, a company that has established a reputation for providing high-quality tools at a low price. And the Civivi C907A variant ($50) is one of the greatest of them, a genuinely excellent all-around knife for daily wear. Their 3-inch blades are made of D2 steel, which is one of the better alternatives available at this price point. Even better, the knife's "motion" (blade opening through the flipper tab) is comparable to rivals that cost double.
If there is a disadvantage to this Civivi C907A, it is the D2 steel itself (yes, it has both upsides and downsides!) While D2 will retain its edge for an extended period of time, it is not the greatest rustproof of substances. To be more specific, it is a more upgraded version of the CTS-XHP knife - which means you will need to exercise the same safeguards and maintenance tips. Dry the blade thoroughly before re-tucking it between the flanks to minimize discoloration.
Ratings: 4.7 stars (from 2412 reviews)
Price: $50.15
Buy it at: https://www.amazon.com/dp/B07VK835TW