Microtech LUDT Automatic Knife Review

For over 20 years, Microtech has been working to build a long standing tradition of innovation and quality with each knife that leaves their facility. In a world of ever changing technology, we strive to ensure their customer have access to the latest advancements in knife making, while still continuing to maintain a humanized element throughout the manufacturing process. As the company continues to grow, their focus remains the same: delivery revolutionary products that exceed the industry’s ever increasing desire for groundbreaking ideas. They appreciate their customers, for the years of loyalty and support, and for motivating them to better themselves so that they may continue to rise above your expectations. Some memorable moments from Microtech’s history:

  • In 1994, the very first knife prototypes were created in Anthony and Susan Marfione’s apartment.
  • In 1994, the release of the UDT marked the official beginning of Microtech. The company began renting a building in Vero Beach, Florida, which quickly expanded to nearby empty buildings as the demand for a larger facility became apparent.
  • In 1995, they released the HALO, which has become a prominent line through Microtech’s history and earned the cover spot of the 1995 edition of Fighting Knives magazine.
  • In 1999, the Ultratech, the most popular Microtech ever, first hit production.
  • 1999 was also the second year in a row which Microtech earned Blade Magazine’s Manufacturing Quality Awards.
  • In 2000, Microtech released the company’s first balisong knife, the Tachyon, which was later followed by the Tachyon II and the Metalmark in 2012.
  • In 2004, the initial run of the Currahe was limited, with the first few placed in the hands of those best suited to test the knife, the United States Special Forces.
  • In 2007, Microtech’s sister company, Microtech Small Arms Research engineered the original STG-5.56, becoming the first knife company to establish a firearms division.
  • In 2015, they had significant collaborations with Heretic Knives, Sean Marfione, Kohi hara, Borka Blades, and Munroe Knives.
  • 2015 also saw the introduction of the thin Blue Line law enforcement special Ultratech.
  • In 2016 production porotypes of the SBK and kitchen knife collaborations with Borka Blades were released at Blade Show.

Microtech’s knives are amazing knives. All of them are durable and reliable. Today, we are going to be talking about the LUDT (Large Underwater Demolition Team) knife series. This series has a wide variety of different options to choose form, so we will be going over all the different options that you are presented with.


The Blade:

The blade on the Microtech LUDT’s are made out of Bohler Elmax steel. This is a European powder metal steel that is used in higher end knives, Elmax has an advanced formula and the result is a very good all-around steel, a generation ahead of formulations like 154CM. When this steel first came out, it was pricey, but the competition has driven it down to reasonable levels, which makes it a decent value. This steel is a high chromium vanadium molybdenum alloyed powdered steel with extremely high wear and corrosion resistance. Elmax is stainless but acts in many ways like a carbon steel. You get superb edge holding and relatively easy sharpening while maintain a healthy resistance to rust. Many of Microtech’s blades are made from Bohler’s Elmax. This is because they have found it to provide the best balance between corrosion resistance and edge retention. This is a high performance knife stele, and is a third generation powder metal technology that is noted for its fine carbide distribution with extremely low inclusion content for virtually no chip out.

With the blade, you can get a very wide variety of blade finishes. The two most common ones that you are going to find on a LUDT knife is either a black coated finish, a bronze/bead blasted finish, or a satin finish. Coatings provide corrosion resistance, but they will scratch off eventually and at different rates, depending on the quality of the coating. One of the most common coating finish is the black coating that you are going to get on the LUDT knife. The black coating is matte.

A satin finish is the most typical knife finish. It is slightly less shiny than a polished finish and it is less expensive than both the mirror and polished finishes. It has decent corrosion resistance but less than polish or mirror finished blades.

The bronze/bead blasted finish is also one of the common finishes that you are going to find on this knife series. A bead blasted blade is dull and non-reflective and it is just what it sounds like—the steel is literally blasted with plastic beads to reach the desired finish. This type of finish also hides scratches pretty well, but the stonewash accomplishes this a little better. A bead blasted finish has a rougher texture and is therefore more susceptible to corrosion. These blades are covered with a bronze finish.

You can also get the LUDT with a custom finish. This is from their Star Wars series: The Jedi Knight, which has a blue and satin blade, the Sith Lord which has a red and satin blade, the Jedi Master which has a green and satin blade, and the Storm Trooper which has a white blade.

Microtech LUDT Auto Knife
Microtech LUDT Auto Knife

The LUDT has been designed as an everyday carry knife and the perfect blade shape for that is the drop point that they chose. This is a great all-purpose knife that can stand up to anything. A drop point knife blade is also one of the most popular blade shapes that is in use today. The most recognizable knife that feature a drop point is the hunting knife, although it is used on many other types of knives as well, including the larger bales in Swiss army knives. To form this blade shape, the edge of the knife runs straight from eh handle to the tip of the knife in a slow curved manner, creating a lowered point. This lowered point provides more control and adds strength to the tip. While the tip on the drop point is not as sharp as the tip on a clip point, it is much stronger. Because of this tip strength and the ability to hold up to heavy sue, drop point blades are popular on tactical and survival knives. Drop point knives also feature a large belly area that is perfect for slicing. It is this large belly that makes the LUDT such a perfect everyday carry blade. The blade shape is ideal for everyday carry and simple chores, because the drop point profile is very popular and used on a variety of pocket knives and fixed blades. The only downside is that this blade’s broad tip isn’t suited for piercing, especially compared to clip or spear point blades.

With the LUDT knife series, you have the option between either a plain edge or a serrated edge blade. A plain edge is a blade that is one continuous sharp edge and it is far more traditional. They serve a much wider purpose as their most useful application is what most of us think of when we think of using a knife: a strong, steady pressure. Another key advantage of a plain edge is that it doesn’t snag or fray when cutting through some ropes, however, it may simply slip. A plain edge cuts cleanly. Serrated edges are blades that have some kind of toothed or saw like edge ground into the cutting surface. These are intended to be used much like a small saw, with a back and forth motion. They’re great for cutting through belts and ropes, fabric, and various other textured materials. Serrate blades also work great on substances that are soft, such as bread or tomatoes. However, cutting with a serrated edge often causes fraying and when the blade is dull it’s much more difficult to sharpen and requires specialty sharpening equipment. It really comes down to what you are most likely going to be using your blade for and personal preferences.


The Handle:

The LUDT knife series is mostly made out of 6061-T6 Aluminum. There are a couple of other options for the handle material, but the majority of the knives in this series are made out of the aluminum. Aluminum is a very durable material for knife handles. It is a low density metal that provides for a nice, hefty feel to the knife without weighing the knife down. The most common type of aluminum that is used today is the 6061-T6 aluminum alloy which has tremendous tensile strength. When properly texturized, an aluminum handle can provide a reasonably secure grip that is also comfortable and easy for extended use. On the downside, if you use your knife quite a bit during colder winter months, you might find the handle uncomfortably cold given its conductive properties. Aluminum is generally considered inferior to its stronger, yet more expensive brother Titanium which tends to be found on the more premium knives.

The handles that are made out of the aluminum have been anodized for color, hardness, and protection. There is a very wide variety of different colors of anodized handles such as: black, tan, bronze, red, green, turquoise, burnt orange, purple, and silver.

The handle has four long grooves that go down the length of the knife. The handle has been contoured to fit your hand comfortably. There has been a lanyard hole carved out of the handle, which comes in use in many different situations.


The Pocket Clip:

The pocket clip is held in place by tree small screws.


Microtech LUDT, 135-1TQ
Microtech LUDT, 135-1TQ

The Mechanism:

This series of knives are all Automatic knives, or switchblades. This is a type of knife with a folding or sliding blade contained in the handle which is opened automatically by a spring when a button on the handle is activated. Most switchable designs incorporate a locking blade, in which the blade is locked against closure when the spring extends the blade to the fully opened positon. The blade is unlocked by manually operation a mechanism that unlocks the blade and allows it to be folded and locked in the closed position. However, switchblades do have some strict laws surrounding them. This means that before purchasing your favorite LUDT knife, you need to be aware of what your local knife laws are. This knife might be illegal to purchase or carry in your area.


The Specs:

The blade on this knife is 3.375 inches long. The overall length of this knife is 8 inches long, with a closed length of 4.625 inches long. This knife weighs in at 3.6 ounces. It was made in the USA.



The LUDT is based on the U.D.T, Microtech’s original compact automatic folder.  Re-released for the first time in years, this larger, updated version features a milled handle, with lanyard hole, and recess for the firing button.  The latest model also features a revised blade profile and tri-angle hardware. Microtech’s L.U.D.T. auto knives are back–and we couldn’t be more excited. This premium automatic knife was first produced in the 1990’s and quickly established itself as one of Microtech’s fastest selling side open automatic knives. The L.U.D.T (Large Underwater Demolition Team) comes made out of Elmax steel that is strong, durable, and reliable. This steel has some of the highest corrosion resistance that you are going to find and is a premium grade steel that is going to give you good bang for your buck. The drop point blade shape is useful in a wide variety of circumstances and helps to make this a great EDC option. You have the option of a wide variety of different blade steels and you can choose between a combo edge or a plain edge. The handle is made out of aluminum, which is very durable and very resistant to corrosion and rusting. This material has been anodized in almost any color that you can picture. With so many options, this automatic knife is sure to please. Pick up your favorite version today at BladeOps.



A Week with a Microtech Ultratech

Molon Labe Ultratech
Molon Labe Ultratech from Microtech

Microtech has always fascinated me with their automatic knives. Especially their Out the Fronts. With that being said, I recently picked up a new Ultratech. The Ultratech, for those of you who don’t know, is one of the most popular knives offered by Microtech. It has always had a generally positive reputation. But I had to test it out for myself to see. This is what I have found with the Ultratech.


Day 1- Today I made the purchase of the Ultratech. The specific one I got was the new Molon Labe Ultratech. The design of this knife is what really pushed me to purchase it. With a Spartan helmet on the front handle and the Greek letters spelling Molon Labe were huge factors of getting this knife. Plus, it’s a convenient automatic knife. It can be used with only one hand. It was a great choice.

One of the first things I wanted to do with the knife was to show my family how awesome it is. They are always excited to see new fun “toys” that I bring home. When I showed it to them, they were in awe. I was right there with them. Every time either I or one of my family members fired off the knife, I got more excited to own the knife. I didn’t do much cutting that day, but it was good to carry with me.


Day 2- This was my first full day carrying the knife. My biggest observation from today was how unnoticeable the knife was in my pocket. My phone and other items were able to fit in my pocket with my knife, and there was room to spare. The one thing that I did keep on noticing was the glass breaker that was found on the butt of the knife. The pointed metal end would prick me if I wasn’t careful. Other than that, the Ultratech was great to have equipped. Today required me to use my knife quite a bit. Working around the house doing some chores needed a knife for some projects. Having a knife ready in the blink of an eye was a huge help when I had so much to get done. Though it didn’t save a ton of time, it was still more than having to use a folder, scissors, or some other cutting tool.


Day 3- On this day I found another disadvantage of the knife. I was at worship today and saw a loose string on my pants. Out of habit I pulled out my knife and cut it off. The people around me seemed to not like that. You see, the knife has a loud snap when opening. This could be good in a lot of cases (such as intimidation when in a self-defense situation) but at church, it wasn’t such a good thing. If this kind of situation doesn’t apply to you, then it isn’t a problem at all. Where I could see it being a problem is at the office or at a library. Some of those quite places where people don’t expect a loud snap out of the middle of nowhere.


Day 4- Mondays tend to be awful. The weekend has just ended and now it’s time to get back to reality. One of the good things about today is that I still own a Ultratech. Although it didn’t see too much usage, it was fun to show around the office.


Day 5- My knife came in handy all throughout the day, especially when working in the kitchen. Although the knife wasn’t used in food preparation, it was helpful in pre-preparation. Cutting was a breeze when it came time to open up boxes and packaged food. The Ultratech cut through the cardboard with ease, as well as the plastic that was sealing up my food. Dinner was on the table a whole lot quicker. If you’re still using scissors to open up your food, you might want to invest in a knife, especially a quick auto like the Ultratech. It was so simple to use. Literally, it is as easy as flipping a switch. Being able to use an Out the Front knife with one hand makes cutting simple and quick.


Day 6- There wasn’t much use for my knife today. It was just running around doing errands and working. I have been better at not poking myself with the glass breaker on the end of the knife. My grip on the knife has adjusted to fit even better. I think that over time that the knife will continue to feel more secure as my muscle memory in my hand improves. The Ultratech hasn’t given me any problems when it came to pocket real estate. There have been many pairs of pants worn over the past few days. Each one has been able to hold my knife and all the other items I keep in my pocket. With its discreet look, the knife hides well inside my pocket. No one has pointed it out or acted strangely since I have been carrying it. It makes for a great everyday carry knife in that department.


Day 7- Well, today is the last day of my one-week trial of owning a Microtech Ultratech. It has been a great choice in a knife. My overall biggest concern about purchasing the knife was the price. The Ultratech is not cheap. Not in its price, but it also isn’t a cheap knife. From already owning it a week, I know that this knife will last me a long time. At this time, I can confidently say that purchasing this knife was well worth the cost. Although in a week (as you have read) the knife hasn’t seen a lot of use, I am confident that it will be able to handle any cutting task that might come up. Who knows, the knife could be a lifesaver someday. Only time will tell.


Now that you have read into a little bit of my experience with my Ultratech, it is your turn to get one. Only then will you truly know what it is like to own a knife like this one. There is a vast variety of Ultratech knives to choose from. All you need to do is go to BladeOps.com to learn more.

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Microtech DOC Automatic Knife Review — Video Review

Looking for a high quality side open automatic from Microtech Knives?  Check out the DOC collaboration series designed and built by Anthony Marfione and Mick Strider.  This knife features fast, hard open and tight lock up.  The firing button boasts a very unique setup that makes it virtually impossible to fire without meaning to do so.  Find your favorite DOC here on our website.

Microtech Mini UDT Automatic Knife Series

Microtech Mini U.D.T.
Microtech Mini U.D.T. side open automatic knife, model 155-1

While famous for their OTF auto knives like the Ultratech, Microtech has also made some spectacular side open automatics knives.  For instance, the UDT series are side open automatics that are built for heavy use–specifically although not exclusively for combat zones.

Currently in production, the Microtech Mini U.D.T. is the smallest side open you will find from them.  It has an aluminum handle with a rubberized inlay.  A solid, fast opening auto–the Mini is especially a favorite among those who like to EDC an automatic knife but don’t want to carry a beast.  With a closed length of 3 1/4″, the Mini UDT is perfect for pocket carry.  It doesn’t have a pocket clip–so you can carry it old school style in the bottom of your pocket or you can do what I do with mine–run a lanyard with a skull bead on the end through the lanyard hole and hang the bead out the edge of my pocket.  That way, the knife is easily accessed.  It works almost just like a pocket clip.

U.D.T. stands for Underwater Demolition Team.  The current crop of Mini UDT knives have ELMAX blade steel.  Elmax is a powder metallurgy stainless steel that many consider to be superior to S30V.  It is extremely tough and holds an edge very well.  If you haven’t checked out one of Microtech’s fantastic Mini UDT’s–you can find them here.


  • Overall Length: 5 5/8″
  • Blade Length: 2 3/8″
  • Handle Length: 3 1/4″
  • Weight: 1.3 ounces
  • Made in the USA

Friday Update–Microtech Knives in Stock

Quick update–We just received several dozen Microtech knives back in stock.  If you’ve been looking for a specific Microtech, just in are several variations of the Tanto Ultratech, several variations of the Dual Edge Ultratech, and even a few of the UTX-70’s. Grab them while you can–they will move fast.


Microtech UTX70 CA Legal Knives

mt148-1tca-1The newest UTX70 Out the Front Knives from Microtech are here.  With a special 1.9″ blade, these CA legal knives are quite possibly the smallest on the market.  All the fast action and quality construction that you expect out of a Microtech knife packed into a very small package.  Get them while they last–these are part of a small run of knives that were produced.

Microtech Semi Custom Ultratech and Scarab Knives

Semi Custom Ultratech
Semi Custom Ultratech

Every once in a while, Microtech does a small run of semi custom knives that are meant to be sold as a set.  Just in, the newest addition from Microtech.  An extremely limited number of Ultratech and Scarab OTF knives were produced with stainless steel Damascus blades and carbon fiber top covers.  They also have blued titanium hardware.  If you buy the pair, you will get matching serial numbers.  These knives are incredible.  Check them out on our website and get your order in fast, because they are going to be gone soon.