Tac-11 with titanium carbonitride coating

Joined
Oct 6, 1999
Messages
525
Evaluate another of your knives, HELL YES I will…..


This was my answer when Tom asked me to take a look at his new Tac-11, black titanium carbonitride coated knife. I had just told Tom my ODA was heading over to Thailand on a 3-month mission. It sounded like the perfect corrosion /wear resistance test for the coating. http://albums.photopoint.com/j/View?u=1092947&a=8070969&p=26733344


This new version of the Tac-11 has a blade length of 6-1/2". The steel is modified A-8 with a blade finish of titanium carbonitride. It was vacuum heat treated to 58 Rc and deep frozen to -125 degrees Fahrenheit before temper for extreme toughness. The handle is constructed of black canvas micarta. The knife weighs in at 14 oz. The Sheath I received is the Airborne deluxe knife sheath, from Blackhawk industries and is a great improvement over the kydex sheath. (Which is a good sheath, I just happened to break one before and requested something indestructible this time.)
I’ve had bad results with blade coatings in the past, with them wearing or flaking off, and have avoided them since, opting for generous amounts of oil and maintenance while out in wet environments. Because of the past experience I’ve had with Tom’s knives, I jumped at the chance to give his work another torture test.
The new Tac-11 arrived in Thailand shortly after we did. I immediately took it out to our training site and put it to work. We were at a demo range at the time teaching Thai soldiers basic demolitions. I gave the knife to a Thai and told him to use it for the day. 10 hours of cutting det-cord and time fuse, http://albums.photopoint.com/j/View?u=1092947&a=8070969&p=26725360
digging in very hard ground, and any other use the Thais could find for the knife left it in much better condition than I expected. No, it was not popping hairs off my arm, but it was still darn sharp. The coating looked great, I could see where it was sanded from all the digging but it was still there. The coating seems to be a part of the knife; not just something spayed or baked on that would chip or flake off. About ½ of a cm of the tip had broken off from the day’s use. Prying open a wooden case of demolitions turned out to be the cause. No problems though, I took it to a machine shop in town and ground it down to a drop point. I prefer this anyway since it creates an incredibly strong tip. The rest of the time I was using the knife I never had another difficulty with the tip.
Later in the week the Tac-11 was put to use again by our Thai counterparts. They wanted to cut some bamboo and actually sought the Tac-11 out. It was quickly becoming a favorite item. No problem making single slash cuts through bamboo poles about 2 inches in diameter. It just flew through them. The knife also worked flawlessly for finer woodwork, notching bamboo and such. Harsh work kept seeking the Tac-11 out. We went on a trip up to Sakaow, near the Cambodian border to evaluate de-mining operations. During one of the eval runs I gave a de-miner the chance to use it. http://albums.photopoint.com/j/View?u=1092947&a=8070969&p=26725367
He did and proceeded to try out its effectiveness as a probe. At the time they were probing with screwdrivers. He liked the fact he could probe with it and dig around the mines (training of course). Not something the rest of us do on a regular basis, but it was interesting to watch. I’m just glad it wasn’t evaluated for explosive survivability, ha ha. http://albums.photopoint.com/j/View?u=1092947&a=8070969&p=26725367

At one point in Thailand I left the knife submerged in a river for 24 hours with no signs of corrosion at all, except, small amounts of surface rust on the bolts that secure the handle. http://albums.photopoint.com/j/View?u=1092947&a=8070969&p=26725364
After all that, I’d say that the Tac-11 excelled under the duress of extremely tough use in Thailand
When the team returned to the States, one of the first things we did was conduct a water jump into Puget Sound, pushing out a zodiac with us. A perfect time to test the jump stability of the sheath and salt water resistance of the knife’s coating. I rigged the Tac-11 onto my shin over my drysuit. We jumped from an altitude of 1250 feet agl. The Tac didn’t even budge from the sheath. It performed exceptionally well when de-rigging our boat. After we swam over to our zodiac and started cutting away all the webbing some of the guys found that their dive knives were not the best tools for this job. No problem, webbing just flew apart when I touched it with the Tac-11. I had no difficulty with grip instability, even bare handed in 38-degree water.
I left the Tac wet in its salty sheath for about 30 hours after the jump, along with a dive knife. I was very surprised to see the low amounts of surface rust on the knife, even along the sharpened blade edge. I was extremely satisfied with this demonstrated resistance to corrosion. http://albums.photopoint.com/j/View?u=1092947&a=8070969&p=26725338 http://albums.photopoint.com/j/View?u=1092947&a=8070969&p=26725345
Overall, Tom makes a superior product. His line of Tac knives are very versatile, nearly indestructible, well thought out beautifully constructed knives. The black titanium carbonitride coating resisted harsh wear, the humid jungles of Thailand and salt water testing here in Washington State. Again, I say I’d use Tom’s knives on any mission I go on without hesitation. I trust his Tac-11 more than any knife I’ve ever used. When it comes to your safety and situational survivability, trust is a nice feeling to have.

Dan Kohlstrom[/B][/QUOTE]



[This message has been edited by Javahed (edited 08-21-2000).]
 
Javahed:

The Sheath I received is the Airborne deluxe knife sheath, from Blackhawk industries and is a great improvement over the kydex sheath. (Which is a good sheath, I just happened to break one before and requested something indestructible this time.)

How did you break the Kydex sheath? How is the Blackhawk sheath more durable? Materials or construction?


The coating looked great, I could see where it was sanded from all the digging but it was still there.

So you could see some wear on the coating, but not to the extent that bare metal was visible? The coating wear looks very minimal, much better than many coatings I have seen and it seems to offer very high corrosion resistance.

Interesting commentary on the high cutting ability, from the pictures I would not have guessed that. The edge geometry must be pretty good. Very nice followup to your commentary on the uncoated TAC-11 :

http://www.bladeforums.com/ubb/Forum3/HTML/001388.html


-Cliff
 
Cliff,

The Kydex sheath came apart where the securing straps were attached to the sheath. I find the Blackhawk sheath to be more comfortable to wear. It can be configured to carry in many different ways (Shoulder, the, vest pack). It is quiet in the woods when branches scrape across it. This sheath is built like a tank. The ballistic nylon outer portion is incredibly wear resistant. There is also a hardened blade holding inseret inside the sheath. It has an extra pocket on the outside. I can fit either a Leatherman multitool or a pistol magazine in it, dependent upon what my needs are.
As for the blades appearance after wear and tear; here is a picture of it as of right now, just out of the sheath. http://albums.photopoint.com/j/ViewPhoto?u=1092947&a=8070969&p=26793829
Pretty darn good considering what this knife has beed through.

I wish Colt would have coated our M-4's with this substance.
wink.gif


Any other questions or comments, just send 'em my way.

Dan


[This message has been edited by Javahed (edited 08-22-2000).]
 
Dan :

This sheath is built like a tank. The ballistic nylon outer portion is incredibly wear resistant. There is also a hardened blade holding inseret inside the sheath. It has an extra pocket on the outside. I can fit either a Leatherman multitool or a pistol magazine in it, dependent upon what my needs are.

The sheaths made for Strider by Eagle Industries have many of the same features and are my favorite out of what I have seen so far. The extra pocket is very nice indeed, I usually carry a decent multi-tool or a sharpener in there.

Pretty darn good considering

Yes, I which that more people would switch to the harder more wear resistant coatings. I have used many that come off after a just a days use. I would strongly prefer a plain finish than that type of coating.

What are your thoughts in general about blade length? Were you ever wanting for a few more inches on the TAC-11 or did it do what you wanted just fine?

-Cliff
 
Cliff

Anything I would want in extra length I think I would handle with a pack machete. I could always find a use for extra length or heft but I think after a certain point a knife ceases to be effective as a knife and turns into a machete. The ONTARIO Spec Plus Machete is what I had carried in my pack, although, it has been sitting on the benches since I recieved the Tac-11. Without further rambling, no, I have not wanted for any extra blade length on my knife. It's done everything I have needed it to do so far.
wink.gif


Dan
 
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