Buying guide
Choosing the right automatic knife under $100
The right automatic knife under $100 should fit your hand, your budget, and the tasks you expect it to handle. Start by choosing an opening style, then compare the dimensions, materials, and blade configuration of individual models.
Choose your preferred action. Double-action OTF knives automatically extend and retract the blade through the front of the handle. Side-opening automatics swing the blade outward, typically using a push button or lever to activate the opening mechanism. Check each model’s closing instructions, since operation varies.
Compare size and pocket comfort. Look at closed length, handle thickness, weight, and pocket clip placement—not just blade length. A compact knife may take up less pocket space, while a larger handle may better suit your grip.
Match the blade to your needs. Compare drop point, tanto, and traditional bayonet profiles, along with plain-edge, serrated, and double-edge configurations. Check which edges are sharpened and whether the blade design suits your usual cutting tasks.
Look beyond the price. Clearly listed specifications, suitable materials, maintenance guidance, and warranty terms help you judge value. A higher price within your budget does not automatically make a knife the better choice.
Browse the products above to compare affordable OTF knives, folding automatics, and classic switchblades. If you want to explore a particular opening style further, visit our OTF knives or double-action OTF knives collections.
Common questions
Automatic Knives Under $100: Frequently Asked Questions
What is the best automatic knife under $100?
The best automatic knife under $100 depends on your preferred opening mechanism, hand size, cutting needs, and budget. Compare blade steel, dimensions, weight, and manufacturer support. Choose the model whose specifications suit you rather than relying on appearance or price alone.
What is the difference between an OTF knife and a folding automatic knife?
An OTF knife extends its blade through the front of the handle. A folding automatic pivots its blade out from the side. Double-action OTF models also retract automatically, while many side-opening automatics require manual closing after the lock is released.
Can an automatic knife under $100 be suitable for everyday carry?
Yes, an affordable automatic knife can suit everyday cutting tasks when its size, blade design, and construction match your needs. Compare pocket comfort, grip, and edge configuration before choosing. Confirm that the knife is permitted where you intend to carry and use it.
Which blade steel should I choose in a budget automatic knife?
Consider how you balance edge retention, corrosion resistance, and ease of sharpening. Check the specific steel listed for each knife rather than assuming all stainless steels perform alike. Heat treatment and blade geometry also affect performance, so the steel name alone does not determine quality.
Are all automatic knives double-action?
No. Double-action OTF knives automatically open and retract using the same control. Single-action OTF knives open automatically but require a manual reset. Many push-button folding automatics open automatically and close manually. Always check the action type in the product specifications.
How do I maintain an automatic knife?
Follow the manufacturer’s care instructions for your model. Keep the blade clean and dry, remove debris as directed, and use only the recommended lubricant and amount. Maintenance procedures differ between OTF and folding designs. Contact the manufacturer or retailer if the knife’s operation becomes inconsistent.
Do automatic knives under $100 qualify for free shipping?
Yes. Orders totaling $50 or more qualify for free U.S. shipping. The threshold applies to the order total, so an individual knife priced below $50 does not qualify by itself. Review the shipping policy for destination eligibility and additional details.