SOG Knives Collectors
The encyclopedia of extraordinary knives
`What's New`
*The EXTRAORDINARY Knives (1986-2008)*
*Current Knives (2009-)*
Country of Origin - SOGs
SOG Knife Values
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Wanted/For Sale (new)
Wanted/For sale
About Us
Daggert 1 & 2 ('05 Special Ed.)
Desert Dagger
Desert Dagger (Leather)
Gov-Tac ('05 Special Ed.)
Government (Leather)
Government Agent
Midnight Tigershark
Nite Tech
Northwest Ranger
Northwest Ranger (Cocobolo)
Pentagon (Cocobolo)
Recon Bowie
Recon Bowie (Damascus)
Recon Government
S1 Bowie Original
S1 Bowie (Tigerstriped)
S1 Bowie (Damascus)
S1C Bowie Commemorative
SCUBA/Demo (Damascus)
Seal 2000
Seal Pup (Japan)
Team Leader (folder)
Tech I
Tech II
Tigershark (SK-5)
Tigershark (Powdered)
Tomcat (Original)
Tomcat (Cocobolo)
Tomcat II
Trident S2 Bowie
X-42 Recondo
X-42 Recondo (Black TiNi)
X-42 Field Knife
Tigershark (SK-5)

SOG Tigershark (SK-5) steel

SOG Knives Collectors' Review/Take:
The SOG Tigershark (SK-5) was the 5th model that SOG produced. It is one of the first few iconic models that SOG rolled out - which means that it forms the basis of the SOG company history. Just imagine - 9 inches of shiny sharpened SK-5 carbon steel... almost like a mini-sword! This knife is especially hard to come by, and it pops up rarely for sale on the web. This model is the base for the current Tigershark models, like the Tigershark Elite. Many have commented that this SOG knife makes a great camp tool (especially for chopping) and makes very quick work of any wood, largely due to its nice hefty blade that has great weight balance and feel. People who bought this knife certainly did use it well, which explains why it is difficult to find a Mint In Box (MIB) piece.

The SK-5 Tigershark is also the iconic knife used in the new "SOG
split bullet logo", of which the picture of it cutting the .45 pistol round can be found at the bottom of this page. It is one of the most sought after knives for SOG collectors today and continues to fetch high prices in sales. The Tigershark model continues to be a popular SOG knife as its largest model (by blade length) and it is still being produced by SOG in modern versons.

Copyright © Notice: If you plan to use our information (eg. selling your knife on Ebay), please cite our website by saying "Information taken from:" or mention our website.


Blade Length: 9 in. x .250 in.
Overall length: 14 in.
Blade steel: SK-5
Blade hardness: Rc. 56-57
Blade finish: Satin-finished
Weight: 17.5 oz.
Edge: Plain edge
Carry System: Leather sheath
Handle Material: Black Kraton handle
Knife Type: Fixed Blade
Country of origin: Japan
Part #: -unknown-
Rarity Details:
Last Known MSRP: $<.>
Production dates: 1986? - late 80's?
Production numbers: ?
Limited run?: No.
Other things of interest: The very first knives have "S. M. CA" engraved below the square SOG logo
Rarity index: 9/10 (10 being the most rare)
Rarity index scale (1 to 10, 10 being the most rare):
1 - Very common; easily available on ebay, google product search and almost every knife selling website. Spammed with at least 10+ listings on ebay.
3 - Has been around for at least 2 years and are selling reasonably well, with retailers favouring other newer models over this knife.
5 - Knives that are on the borderline of being discontinued or have been discontinued for less than 6 months
6 - Products from 6 onwards are either discontinued or limited edition.
7 - Discontinued knives that pop up once every few months on the "For Sale" part of forums or on ebay. Still can be found at a few online shops though.
8 - Knives that need lots of researching to find. Not available anymore in online knife shops and pop up (if you're lucky) >4 months for one at a time.
9 - Knives holding this rarity are the shadowy kind. You can't find any information on them at all (not even from online knife shops that have not taken down that knife's product page). If you see one for sale grab at all cost.
10 - The rarest of all knives. If you hadn't been here you wouldn't even have known that it existed. Should you have one of these you better lock it up in a triple-combination safe and treat it like a family heirloom...

Links to forums on this knife:
- Tigershark steel?  (Bladeforums)
- Tiger Shark TS-100?  (Bladeforums) 
- Old SK-5 non-serrated Tigershark...Pictures?  (Bladeforums) 
Original SOG Tigershark Question  (Bladeforums)
Product Description: 
Not just another "fish in the sea". Sporting some of the latest blade crafting technology, the Tigershark's modern bowie blade is manufactured from the highest quality carbon steel, custom smelted and rolled to SOG's specifications. The Tigershark also features flat ground bevels, faceted reinforced tip and a special "rolled edge". One piece molded Kraton handle fully surrounds the knife's tang. Includes high quality black leather sheath.

SOG Tigershark SK-5 - what's in box (Photo:"appels" - bladeforums)
What's in the box
SOG Tigershark SK-5 'S.M.CA' version (Photo:"appels" - bladeforums)
Earliest version made
SOG Tigershark SK-5 Seki, Japan (Photo:"appels" - bladeforums)
Seki Japan manufactured
Old vs new SOG Tigersharks (Photo: "Argus1" - bladeforums)
Powdered vs Satin finish
SOG Tigershark SK-5 with Team Leader folder (Photo:"Bobby B" - bladeforums)
Tigershark beside Team Leader
Tigersharks made in SK-5 steel (Photo:"appels" - bladeforums)
With gun-blued version
SOG Tigershark family (Photo:"appels" - bladeforums)
Tigershark & family of 4 variants
This high-speed composite photograph was taken at a millionth of a second & captures a .45 caliber bullet after being fired from pt blank range at the Tigershark. The blade shows up white where lead has been deposited after 17 shots. By:" Ron Anderson"
Tigershark splitting .45 bullet

Tigersharks beside their sheaths

SOG Tigersharks sheathed

Powdered vs SK-5 Tigershark

Close up on blade

Right side of blade



Page last updated:  Tuesday, December 01, 2009 00:34:47 PST