Best Microtech Knives: OTF, Side-Opening and Manual Picks

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Buying a Microtech does not have to mean buying an OTF. A side-opening automatic gives you a conventional folding blade; a manual folder removes the spring-fired action altogether. Choosing that format matters more than picking another finish.

I'd start with the controls and the size you want to carry, then decide whether a premium feature is worth the extra cost. These four choices cover different ways to use a Microtech, while our Microtech brand profile covers the company background.

Key Considerations

• Pick the action first: The Ultratech and UTX-85 deploy and retract straight out of the front using a slider. The LUDT opens sideways under spring power and closes manually. The MSI is a manual folder. Choose the controls and closing routine that fit you before comparing finishes.
• Choose useful size rather than maximum blade: The UTX-85 is the smaller OTF here. The MSI has the largest overall size and a broad blade, while the LUDT provides a conventional drop-point shape. Blade length alone does not show handle bulk, pocket space or the amount of cutting edge.
• Check the exact generation: The selected Ultratech is the Gen III ZBP, the compact UTX-85 is Gen IV, and the LUDT is Gen III. Their generation numbers refer to different model families. Do not combine an older review's steel, clip, hardware or handling observations with a current listing.
• Keep the edge and mechanism practical: These picks have plain single edges. Automatic opening, a double edge and local carry or shipping rules are separate considerations; a small automatic is not automatically exempt. Keep the blade path clear and follow the maker's maintenance instructions.

The Ultratech Gen III ZBP is for someone who already wants a full-size Microtech OTF and values this particular mechanism. The plain 3.55-inch drop-point blade slides from the front of a black aluminum handle. Moving the thumb slider powers both opening and retraction, avoiding the side-opening arc of the LUDT.

ZBP is Microtech's Zero Blade Play design designation. That mechanism is the reason to consider this premium version. An ordinary current Ultratech Gen IV is a lower-priced full-size alternative if you do not want to pay specifically for the ZBP configuration. Gen III here does not mean it is the latest Ultratech overall.

At 8.54 inches open and 3.8 ounces, the selected 1121-10AP gives you more blade and handle than the UTX-85. The reversible titanium clip is useful when arranging carry, though the slim format still differs from the LUDT's broader conventional blade. Choose the UTX-85 if you want less length and weight, or the LUDT if its side-opening format suits your ordinary cutting better.

This is the single-edge, Apocalyptic-finish version, not a double-edged dagger or an earlier Ultratech drive system. Keep grit out of the mechanism and follow Microtech's care guidance rather than treating an OTF as a tool for prying. For alternatives from other makers, our OTF knife guide compares the wider category.

The UTX-85 earns its place by making the OTF format smaller. This Gen IV 12314-1T has a plain 3.10-inch drop-point blade and a 7.65-inch overall length, with a nominal weight of 3.1 ounces. It is a meaningful size step down from the full-size Ultratech, rather than another finish of the same knife.

That makes it the OTF I'd consider first when a longer handle and blade seem unnecessary for packages, cord and other brief utility cuts. The tradeoff is less blade reach and handle room. Someone who wants a fuller grip or routinely makes longer cuts may prefer the Ultratech; someone who wants a broader conventional blade should compare the LUDT.

The selected version has a black tactical-finish single edge, aluminum handle and tip-down clip. Its newer generation does not make it the same mechanism as the Gen III ZBP Ultratech, and it does not carry the ZBP designation. Choose it for the size and format, with the same attention to local automatic-knife requirements as a larger OTF.

The LUDT is the straightforward choice here if you want an automatic with a conventional folding blade. Pressing the button swings its 3.5-inch drop point out from the side; closing is manual. Its broader flat-ground blade gives it a different working format from the narrower front-opening Ultratech.

This black Gen III 1135-10 pairs a stonewashed M390MK blade with aluminum handles and 3M grip inlays. The texture is useful to consider if smooth scales are not your preference, although abrasive inlays can be less friendly to clothing than smooth metal.

The selected clip is right-hand tip-up, which is a real limit if you need the clip on the other side. The side-opening blade also needs a clear swing path and a different closing movement from a double-action OTF. Choose the Ultratech or UTX-85 for powered front-opening and retraction, or the MSI if you want to avoid spring-fired opening.

The LUDT is the one to compare when a conventional blade shape matters more than having it emerge from the front of the handle. For a wider choice beyond Microtech, our automatic knife guide compares side-opening options from other brands.

The MSI is the Microtech to compare when manual opening matters more than the brand's signature automatic action. The thumb hole opens a broad sheepsfoot blade, and the RAM-LOK bar releases it for closing. This Dark Earth Tri-Grip polymer version provides a lower-priced route into the brand without simply buying a smaller automatic.

It is still a large knife. The maker gives it a 3.88-inch blade, 8.93-inch overall length and 5-ounce weight, so it is a poor choice if your main goal is minimizing pocket space. The steel-lined polymer handle and reversible deep-carry clip are practical features, but the handle is more plainly utilitarian than the aluminum on the other picks.

The selected 210T-10APPMDE combines a plain, Apocalyptic-finish sheepsfoot blade with Dark Earth Tri-Grip polymer scales. It is distinct from the smaller MSI Mini and versions with metal handles, so compare the exact configuration when choosing a price and carry size.

Choose the MSI for its manual controls and substantial working format. Choose the LUDT if you want a shorter conventional automatic, or the UTX-85 for a smaller OTF. The lower price is useful, but only if this larger handle and blade are the size you want to carry.

Compare Our Picks

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How to Choose a Microtech Knife

Decide how you want it to open and close

A double-action OTF powers both movements with a slider. A side-opening automatic opens under spring power but needs manual closing. The MSI opens manually and releases through its bar lock. Those are more useful first decisions than a steel or finish ranking. Keep fingers clear of the actual blade path for the mechanism you choose.

Pay for a feature you will use

The Ultratech ZBP is a specific premium choice, not the default simply because it costs more. Compare the ordinary current non-ZBP Gen IV if you want a full-size OTF without that premium. The UTX-85 instead reduces size; the MSI changes the mechanism and price point. Pick the difference that matters to your regular use.

Check grip and carry as well as blade length

The UTX-85 has less overall length than the Ultratech, while the MSI is the largest and heaviest selection here. Consider handle space, clip position and weight together. The LUDT's selected right-hand clip is less flexible than the reversible configurations on the Ultratech and MSI. Do not assume another finish or generation has the same arrangement.

Match the configuration and care routine

Confirm item number, generation, edge count and selected handle before ordering. All four use M390MK, but that label alone does not describe geometry, mechanism or performance. Clean and dry the knife, keep debris out of moving parts and follow the maker's lubrication and service instructions. Check the rules and retailer shipping restrictions that apply where you live.

Why Trust Us

I put opening and closing controls, useful blade size and pocket carry ahead of finishes or collector appeal. The premium Ultratech ZBP has a distinct reason to be here, rather than receiving an overall award simply for costing more. The specifications keep each recommendation tied to its particular generation and configuration.

Final Thoughts

I'd choose the LUDT for a conventional side-opening automatic, the UTX-85 for a smaller OTF, or the MSI for manual opening and a larger working format. The Ultratech Gen III ZBP is worth comparing when you specifically want its premium design. Match the knife to the controls and carry you want, then check the exact configuration. For other makers worth comparing, see my guide to the best knife brands.

Frequently Asked Questions

Which Microtech should I buy first?

Start with the opening format. The LUDT Gen III is the conventional side-opening automatic here; the UTX-85 is the compact OTF; the MSI is the manual option. Compare the premium Ultratech Gen III ZBP when its particular mechanism justifies the extra cost for you. There is no one format that suits every buyer.

Is the Ultratech Gen III ZBP the latest Ultratech?

No. A current Gen IV Ultratech also exists. The selected Gen III ZBP is a distinct premium configuration, so choose it for that design rather than assuming its generation name means it is the newest model.

Do all Microtech knives open automatically?

No. The selected MSI is a manual folder with thumb-hole opening and a RAM-LOK bar lock. Microtech also makes side-opening automatics such as the selected LUDT and OTFs such as the Ultratech and UTX-85.

Is a smaller OTF easier to carry?

A shorter, lighter design can take less room and weight, but handle fit and clip placement still matter. The selected UTX-85 is shorter and lighter than the full-size Ultratech. Its smaller size does not make it exempt from applicable automatic-knife requirements.