Top Rated Gear

UK Blue-Tang Hydralloy Steel Knife, Blunt Point Yellow

SKU: UKTKBTB4YL MFR: UK-530051
$161.00

Key Features

  • UK Blue-Tang dive knife boasts a 5" Hydralloy steel blade for superior corrosion resistance.
  • The blunt tip design of this underwater knife is perfect for prying & avoiding accidental punctures.
  • Secure your dive knife with the included sheath and rubber straps for safe, hands-free diving.
  • This stainless steel dive knife features a durable rubber handle, ensuring a firm, comfortable grip.
  • Equipped with a line cutter and partial serrated edge, this knife is a versatile diving multi-tool.
  • At just 9.3 oz, this lightweight dive knife offers ultimate portability without sacrificing sharpness.
See More Product Details
Overview
Compare
Accessories
Specs
Q&A

Questions & Answers

Steve C : what is the blade width at the hilt?YAN G : Just a bit over 1 inch.M H : It is 27mm.
Shopper : Why Did You Choose This?THOMAS G : Was looking for a quality product 5in blade 10in overallM H : secure lock, good priceCorbey J : Easy to find and a fair price.JOHN B : Great knife, but should have bought the titanium version.

Reviews about this item

Review Summary

2024-06-19T09:51:15

Rated 5 out of 5

One of those "Buy it for life" items.

I've owned this knife for over 20 years and still as sharp and useful as new. It is easy to completely disassemble and clean if you desire. Even the rubber straps it originally came with are still serviceable. It will last a lifetime of use if not abused.

Ivan O.

2019-07-31T10:55:23

Rated 1 out of 5

Disappointed

Very sharp blade. The pommel is not metal. It is plastic. How do you signal with a dull plastic pommel. My biggest gripe is that sheath belts/straps are not quick release. I broke a thumb nail trying to undo the "quick releases." With the exception of the blade, this just has the feel of a cheap product. What ever happened to quality? This in my mind is a piece of junk. I didn't even bother to send it back. Not worth the time and effort. However, check out the other reviews, mostly positive so maybe its just me. Maybe my expectations are excessive.

William C.

2019-01-30T11:38:06

Rated 5 out of 5

Highly recommend

Very sharp holds the edge like it should, easy to disassemble for cleaning, titanium blade still looks new after many dives in salt water

Joshua B.

2018-11-17T16:00:35

Rated 4 out of 5

Great Tool

Blue-Tang Titanium Knife fantastic tool, highly recommend.

Terry S.

2018-06-09T05:57:25

Rated 5 out of 5

Excellent tool!

Used this as a professional diver for years. This one was for my Son!

John D.

2017-10-19T12:22:42

Rated 4 out of 5

Light as a Feather

Have not used in a dive situation, but so far quite happy. Light, strong, sharp, and compact.

MARC G.

2017-09-24T20:00:00

Rated 5 out of 5

UK Titanium Knife

This knife has been great so far. The price point was great for titanium. It comes with straps to attach it to your leg, and comes out of the sheath easily. I would definitely recommend for the price. We own an Atomic knife that was $130.00 and this one seem to do just as well.

RonaldC

2017-08-26T20:00:00

Rated 5 out of 5

Very Cool

This knife is well balanced and easy to use with a nice compact sheath design and comfortable handle. It holds its edge well and is very easy to clean after a dive. The usual Underwater Kinetic quality that is hard to beat for the price!

SeanH

2017-07-20T10:23:29

Rated 4 out of 5

Knife

Only used this knife twice and it met my needs and I would recommend this knife to anyone interested in purchasing it.

JEFFREY W.

2017-05-16T15:59:24

Rated 5 out of 5

Big Knife

It was a little bigger than I would have wished. Arrived quickly, As always great service.

Thomas G.

2015-09-21T20:00:00

Rated 5 out of 5

Excellent product.

Delivery was right on time.

Shark

2013-08-02T20:00:00

Rated 4 out of 5

Good Tool

Adequate for the job. Ideal size. Light. Can't judge durability /w only 5 dives. Release is tricky (not good in a pinch). Easy to maintain.

Diver D.

2012-10-01T20:00:00

Rated 5 out of 5

Underwater Kinetics Blue-Tang "Titanium"

This is a beauty of a knife. I have been diving for 37 years and have a accumulated a collection of knives. This is my first titanium. I cannot speak for the durability as I have only had it for a month and used it on three dives. But everything about it looks excellent. It is easy to take apart and clean, it is really sharp, it is light. The locking mechanism is well designed. Overall, I am impressed and plan on making this my main dive knife. I switched the straps, as I prefer velcro.

joe d.

2012-09-11T20:00:00

Rated 3 out of 5

One Weak Link

the plastic tang retainer clips to the knife tang and is threaded at the other end. The handle is secured by screwing a metal nut on the plastic threads of the retainer clip. Over tighten the nut and brake the tang retainer. Instructions - disassemble and clean after each use.

John

2012-08-27T20:00:00

Rated 4 out of 5

Product was exactly as I hoped for

Item is perfect for recreational divers

Florida d.

2012-06-04T20:00:00

Rated 5 out of 5

Titanium

Good knife. Haven't got to use it yet but came decently sharp but I like my blades a little sharper so ran it across my sharpener. Look forward to using it on my next dive.

Jared

2012-06-04T20:00:00

Rated 5 out of 5

Honeymoon

Bought this one and the titanium one as well but wanted to get this one so i would have a good knife when I get there but in case it disappears in route to or from the Dominican it won't hurt as much as losing my titanium one. The quality is not lacking. It is a solid knife that should hold up for years to come with proper maintenance. It comes decently sharp but recommend running it a few times cross a sharpener if you like it with that extra razor edge.

Jared

2012-05-05T20:00:00

Rated 5 out of 5

Perfect

It is perfect knife and very well made. It has good weight and feel to it. Also it can be completely taken apart for proper cleaning. However like everyone else says, there's no hole for a lanyard so I took the handle out then tied a lanyard to the metal then enclosed it back w/ the handle. So now i have something I can have around my wrist

Steph

2011-10-03T20:00:00

Rated 4 out of 5

Does what you need it to do

Quick delivery excellent condition

Indiematrix v.

2011-09-26T20:00:00

Rated 5 out of 5

Great knife for the price.

Fast as always.

MGH

2011-03-09T19:00:00

Rated 4 out of 5

Great Knife at great price

It is extremely sharp and ready to be used. The quality is there and has good grip/feel to the handle. Like everyone else is saying, lanyard hole would be nice addition to it. I haven't dive with it yet but has used it couple of times around the house and it is VERY sharp. Nice knife

HYUNSIK C.

2011-01-16T19:00:00

Rated 4 out of 5

Sweet Knife

The tip was very slightly flattened as if someone stabbed a hard rock with it.

ScubaSam

2011-01-12T19:00:00

Rated 4 out of 5

Value for money!

Easy to use, good leg straps!

Jaap

2009-11-09T19:00:00

Rated 4 out of 5

Light & Slender Titanium Blade

Could use a lanyard loop hole otherwise is a very excellent blade to have. Disassembles easy for easy care and cleanup. I have a similar Blue Reef Deluxe 5" Titanium Knife (with a lanyard hole) that is a slightly thicker/heavier blade which is double edge sharp at the tip of the blade with full tang construction to a threaded metal end for the pommel (that is also titanium BUT GLUED ON - not so easy to remove the first time when cleaning). If some genius company could combine the best attributes of both knives I would buy a hundred of them to give away to all my friends and family.

GC

2009-02-10T19:00:00

Rated 5 out of 5

Blue Tang

Excellent knife...could not ask for better.

Peter

2009-01-16T19:00:00

Rated 5 out of 5

The right dive knife for me!

Incredibly light and very sharp. If it had a lanyard hole, it would be perfect.

txalan

2008-08-20T20:00:00

Rated 4 out of 5

Very nice!

This is an outstanding knife. The titanium is very light (almost as if the knife was made out of plastic) - everything about this knife is very durable and corrosion resistant. My friend has the stainless steel version of my titanium knife, which he forgot to clean on a dive trip - leaving significant rust within days. But not this titanium blade - it's 100% corrosion resistant. The one and only downside is the lack of an effective way to leash the blade. Other than that I could not ask for a better knife for it's specific purpose.

Raffie

2008-07-23T20:00:00

Rated 5 out of 5

great knife

I love this knife. It's extremely light, and will never tarnish. The holster is incredibly well made and very easy to draw from. A+

Mike

2008-05-13T20:00:00

Rated 5 out of 5

fantastic knife

dive and store knife, best for use when on a dive tour, where you dont have time to rinse and dry.

dines

2008-05-13T20:00:00

Rated 4 out of 5

My "tool" of choice, great quality.

Goes everywhere my tanks go, never leave the boat without it.

UK u.

Underwater Kinetics Blue-Tang Specifications

  • Blade Length

    5" (12.7cm)

  • Overall Length

    10.0" (25.4cm)

  • Tip Style

    Blunt

  • Weight

    9.3 oz. (263.65 g)

  • Handle Material

    Rubber

  • Blade Steel

    Hydralloy

  • Sheath

    Yes, Plastic

  • Blade Type

    One Side: Straight Edge
    One Side: Partial Serrated Edge

  • Line Cutter

    Yes

  • Multi-Tool Functions

    Yes

  • UPC Code

    032705300512

1 Accessories for UK Blue-Tang Hydralloy Steel Knife, Blunt Point

  • All Accessories (1)
  • Equipment Care & Maintenance (1)

About Underwater Kinetics Blue-Tang

FEATURED REVIEWS

great knife

By Mike

I love this knife. It's extremely light, and will never tarnish. The holster is incredibly well made and very easy to draw from. A+

Great Knife

By Chris

This was my first dive purchase because I am interested in wreck diving. Considering the durable construction and cleaning features, I am sure it will hold up for many dives to come.

The Blue Tang Hydralloy is UK's improved take on the classic, multi-functional dive knife. UK patented their own Hydralloy steel for a blade that is both strong and corrosion resistant where most competitors' blades only offer one of those features. The special Hydralloy utilizes a unique blend of metal alloys and proprietary finishing techniques to provide a knife with the strength of 420-stainless-steel, while exceeding the corrosion resistance of 316-stainless-steel. The Blue Tang Hydralloy Knife is built rugged, with a partial serrated edge on one side and straight edge with hooked line cutter for cutting through all types of rope and line. It is the ultimate safety tool.

The knives 5" (12.7cm) blade and a heavy-duty pommel end cap for signaling like a tank banger make this one multi-tool functional knife. The Blue Tang Knife has an overall measurement of (L x W x H) 10.0" x 2.15" x 1.0" (25.4cm x 5.5cm x 2.5cm) and weighs 9.3 oz. (263.65 g). The knife blade has a drop point tip design. The knives, rubber ergonomic handle with extended thumb guard on the hilt fits comfortable in your hand. A quick release sheath has a locking mechanism on it, so the knife won't fall out underwater or stab you. Sheath allows one-hand insertion and comes complete with ozone resistant quick-release leg straps. All this make this the best all-around diver's knife. The knife is available in multiple colors and comes with a user manual.

Underwater Kinetics Blue-Tang Features

  • Underwater Kinetics Blue-Tang Hydralloy Steel Knife:
  • Non-Corroding Hydralloy Blade
  • Hydralloy:
    Strength of 420-Stainless-Steel
    Exceeding Corrosion Resistance of 316-Stainless-Steel
  • Line Cutter Hook Easily-Cut-Thru-Any-Entanglement
  • Straight and Serrated Cutting Edges
  • 5" (12.7cm) Blade
  • Heavy-Duty Pommel End-Cap for Signaling (Tank-Banger)
  • Blunt Tip Design
  • Multi-Tool Functional Knife
  • Dimensions (L x W x H): 10.0" x 2.15" x 1.0" (25.4cm x 5.5cm x 2.5cm)
  • Weight: 9.3 oz. (263.65 g)
  • Rubber Ergonomic Handle w/Extended Thumb Guard
  • Knife Fits-Comfortably In-Divers-Hand
  • Quick Release Sheath Locking Mechanism, Knife Won't Fall-Out Underwater or Stab-You
  • Sheath Allows One-Hand Insertion
  • Ozone Resistant Quick-Release Leg Straps
  • Best All-Around Diver's Knife
  • Salt Water Corrosion Resistance and Keen Edge
  • Available in Multiple Colors
  • User Manual

Warranty Information

This product has a limited lifetime warranty.

Key Features

  • UK Blue-Tang dive knife boasts a 5" Hydralloy steel blade for superior corrosion resistance.
  • The blunt tip design of this underwater knife is perfect for prying & avoiding accidental punctures.
  • Secure your dive knife with the included sheath and rubber straps for safe, hands-free diving.
  • This stainless steel dive knife features a durable rubber handle, ensuring a firm, comfortable grip.
  • Equipped with a line cutter and partial serrated edge, this knife is a versatile diving multi-tool.
  • At just 9.3 oz, this lightweight dive knife offers ultimate portability without sacrificing sharpness.

What's in the box:

  • Knife
  • Sheath
  • Rubber Straps and User Manual