Cheap OTF Knives for Sale: Every Out-the-Front Knife Under $20 in Stock

By OTF Knives For Sale Team. Updated September 12, 2026. Every pick was in stock at the listed price when this was updated.

Cheap OTF knives are the best-selling knives on this site, not the worst. The most-ordered OTF here costs about $16. What "cheap" buys is a mini: 5 to 5.5 inches overall with a blade under 2 inches, an aluminum handle and the same slide mechanism as the $40 knives. This lists everything under $20 in stock, by orders, and says what you give up. The rest are on the OTF knives collection.

Quick comparison

How we ranked these

Every product on otfknivesforsale.com carries a 30-day order score recalculated daily from real orders across our store network. The picks below are the in-stock items with the highest score on the day of the last update, in that order, and each one is checked against its listed specifications. This is not a hands-on torture test and nothing here is sponsored; it is what buyers chose with their own money, explained.

OTF knives under $20

1. Kitty Pop California‑Legal Mini OTF Knife - Pink

The best-seller: a mini dagger with a themed handle.

The dagger profile is symmetrical, which is why it is the most common OTF blade: it tracks straight through the front opening. It is a push-cutting and point-work shape rather than a slicer.

At 2-inch blade, 5.25 inches overall it sits in the mini class, which makes it a keychain or coin-pocket knife with a utility edge, not a work blade.

The Hello Kitty finish is a handle graphic; the knife underneath is the same as the plain model in this size, so nothing is given up for the look.

Best for: keychain and gift buyers, a first purchase or a spare.

See current price and stock

2. Kawaii Contrast Pocket OTF Knife - Pink Aluminum

A spear-point mini in contrasting aluminum.

This one is single action. Fire on the switch, reset by hand. Buyers pick single actions for deployment feel and for designs that only come this way; it is the wrong choice if you fidget with the knife all day.

A spear point keeps the dagger silhouette with a single sharpened edge, so it deploys as straight as a dagger and cuts better for everyday tasks.

Aluminum keeps the weight down and takes anodized colors, which is why most of the themed and mini models use it.

At 2-inch blade, 5.25 inches overall it sits in the mini class, which makes it a keychain or coin-pocket knife with a utility edge, not a work blade.

Best for: keychain and gift buyers, a first purchase or a spare.

See current price and stock

3. Heartline Quick-Draw OTF Knife - Red Hearts

The best-selling double-action mini, 440C blade.

This is a double-action model: the same slide fires the blade and pulls it back, so it closes one-handed. That is the feature daily carriers notice most, and it is why double actions take most of the top slots above $30.

A spear point keeps the dagger silhouette with a single sharpened edge, so it deploys as straight as a dagger and cuts better for everyday tasks.

Aluminum keeps the weight down and takes anodized colors, which is why most of the themed and mini models use it.

At 1.75-inch blade, 5.25 inches overall it sits in the mini class, which makes it a keychain or coin-pocket knife with a utility edge, not a work blade.

Best for: keychain and gift buyers, anyone who opens the knife often, a first purchase or a spare.

See current price and stock

4. Sprinkle Pop Quick-Deploy OTF Blade - Pink Zinc

Spear-point mini, sprinkle graphic.

Single-action mechanism, which means a stronger deployment and a manual reset. Grip the blade by the spine and flat, never the edge, and pull it straight back; angling it is what makes single actions bind.

The dagger profile is symmetrical, which is why it is the most common OTF blade: it tracks straight through the front opening. It is a push-cutting and point-work shape rather than a slicer.

Zinc alloy is the heavy, solid cast handle used across the $30 to $45 range. It adds weight in the hand and takes textured finishes well.

At 3-inch blade, 7.25 inches overall, 2.85 ounces it sits in the mid-size class, which makes it the everyday-carry class: enough blade to cut, small enough to forget in a pocket.

Best for: everyday carry with a clip.

See current price and stock

5. Compact Sentinel California-Legal OTF Knife - OD Green

The plain OD green mini for buyers who do not want a graphic.

This one is single action. Fire on the switch, reset by hand. Buyers pick single actions for deployment feel and for designs that only come this way; it is the wrong choice if you fidget with the knife all day.

A spear point keeps the dagger silhouette with a single sharpened edge, so it deploys as straight as a dagger and cuts better for everyday tasks.

Aluminum keeps the weight down and takes anodized colors, which is why most of the themed and mini models use it.

At 1.875-inch blade, 5.25 inches overall, 2.44 ounces it sits in the mini class, which makes it a keychain or coin-pocket knife with a utility edge, not a work blade.

Best for: keychain and gift buyers, a first purchase or a spare.

See current price and stock

6. Cupcake Strike Mini Tanto OTF Knife - Blue Sprinkle

The cheapest OTF in stock and the only mini tanto.

The American tanto has a straight main edge and an angled secondary edge meeting at a reinforced point. It resists tip damage and suits push cuts and scraping; it is not a slicing shape.

Aluminum keeps the weight down and takes anodized colors, which is why most of the themed and mini models use it.

At 1.875-inch blade, 5.125 inches overall it sits in the mini class, which makes it a keychain or coin-pocket knife with a utility edge, not a work blade.

The Cupcake finish is a handle graphic; the knife underneath is the same as the plain model in this size, so nothing is given up for the look.

Best for: keychain and gift buyers, a first purchase or a spare.

See current price and stock

7. Silent Command Micro OTF Knife - Pink Black

Pink and black mini, about $12.

A spear point keeps the dagger silhouette with a single sharpened edge, so it deploys as straight as a dagger and cuts better for everyday tasks.

Aluminum keeps the weight down and takes anodized colors, which is why most of the themed and mini models use it.

At 2-inch blade, 5.25 inches overall it sits in the mini class, which makes it a keychain or coin-pocket knife with a utility edge, not a work blade.

Best for: keychain and gift buyers, a first purchase or a spare.

See current price and stock

8. Stealth Sentinel Patriot Skull OTF Knife - Matte Black

The one full-size knife under $20: 9 inches, double action, plastic handle.

Single-action mechanism, which means a stronger deployment and a manual reset. Grip the blade by the spine and flat, never the edge, and pull it straight back; angling it is what makes single actions bind.

A spear point keeps the dagger silhouette with a single sharpened edge, so it deploys as straight as a dagger and cuts better for everyday tasks.

Aluminum keeps the weight down and takes anodized colors, which is why most of the themed and mini models use it.

At 2.625-inch blade, 7 inches overall, 4.72 ounces it sits in the compact class, which makes it a low-profile pocket knife: a real blade in the least handle.

Best for: low-profile pocket carry.

See current price and stock

9. Sweet Strike Sprinkle OTF Automatic Knife - Pink Purple

The cheapest double action in stock, 5 inches.

Double action means one slide does both jobs, deploy and retract. You never need a second hand to reset it, which matters if you cycle the knife often. Expect a slightly lighter spring than a single action of the same size.

A drop point has a curved belly and a tip near the centerline: the general-purpose shape, and the best slicer in the out-the-front range.

Aluminum keeps the weight down and takes anodized colors, which is why most of the themed and mini models use it.

At 1.75-inch blade, 5 inches overall it sits in the mini class, which makes it a keychain or coin-pocket knife with a utility edge, not a work blade.

Best for: keychain and gift buyers, anyone who opens the knife often, a first purchase or a spare.

See current price and stock

10. Stars & Stripes Micro-Deploy OTF Knife - USA Flag

A rubber-handled double-action micro with a flag graphic.

This is a double-action model: the same slide fires the blade and pulls it back, so it closes one-handed. That is the feature daily carriers notice most, and it is why double actions take most of the top slots above $30.

A spear point keeps the dagger silhouette with a single sharpened edge, so it deploys as straight as a dagger and cuts better for everyday tasks.

The rubberized handle gives grip texture the alloy models do not have, at a small cost in weight. Buyers who use the knife with gloves or wet hands pick these.

At 1.875-inch blade, 5.188 inches overall it sits in the mini class, which makes it a keychain or coin-pocket knife with a utility edge, not a work blade.

Best for: keychain and gift buyers, anyone who opens the knife often, a first purchase or a spare.

See current price and stock

What you give up under $20

Size, mostly. A mini is a utility edge for packages and cord, clipped in a coin pocket. The handle is aluminum, the blade is unnamed stainless or 440C, and the mechanism is the same design used up the range. The only full-size knife under $20 has an ABS plastic handle; plastic flexes and flex is where misfires start, so treat it as light duty. For a metal-handled full-size double action the price is about $33; see OTF knives under $50.

Cheap does not mean marketplace

The same minis appear on marketplaces at similar prices from sellers who do not verify age or exchange a dead mechanism. The price is not the difference; the exchange policy is.

Frequently asked questions

What is the cheapest OTF knife?

About $12 for a 5-inch mini here.

Are cheap OTF knives any good?

As minis, yes; they are the most reordered knives on the site. As full-size knives, the plastic-handled model is light duty only.

Is a $15 OTF knife worth it?

For a keychain, a gift or a first OTF, yes.

Prices are otfknivesforsale.com prices at the time of writing and change with stock.