

🌊 Dive sharp, stay ready — the SEAC K-Jack is your ultimate underwater sidekick!
The SEAC K-Jack is a compact, ambidextrous tactical dive knife featuring a 54mm stainless steel blade with compound bevel edges. Its innovative blunt tip doubles as a screwdriver and prevents gear damage, while the built-in line cutter notch and universal attachment kit make it an essential, versatile tool for scuba divers, snorkelers, and water sports enthusiasts seeking reliable performance and safety.
| ASIN | B079J4K3BQ |
| Age range | Adult |
| Best Sellers Rank | 112,485 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) 21 in Divers' Knives & Shears |
| Blade edge | Compound Bevel |
| Blade length | 54 Millimetres |
| Blade material | Stainless Steel |
| Brand | SEAC |
| Color | Black |
| Customer Reviews | 3.9 3.9 out of 5 stars (118) |
| Date First Available | 4 Feb. 2018 |
| Department | Unisex |
| Features | Locking Blades |
| Hand orientation | Ambidextrous |
| Included components | Knife |
| Item model number | 0550019000000A |
| Manufacturer | SEAC |
| Package Dimensions | 21.5 x 19.3 x 4.5 cm; 156 g |
| Power source | Manual |
| Seasons | Year-round |
| Shape | Wharncliffe |
| Size | One Size |
| Style | 0550019000000A |
S**A
Great will do the job in case of emergencies
Great for my husband & his sea kayaking to carry on his buoyancy aid incase of emergencies while out at sea
M**T
Small but sharp
I thought it was going to be a little lager but does the trick nicely. Used it to cut a rope wrapped around my prop on my boat.
M**E
Good but needs a sharpen before use
Nice fit to the scabbard but blunt out of the box. It needs a serious Sharpen before you use it as a rescue knife.
M**Y
Garbage
Holster is crap very lose fit and the knife is cheaply constructed.
M**D
Small knife for diving
Nice compact knife attachable to BCD. Shame the bolts holding the scabbard aren't stainless steel as they rust after being in the sea and stain the blade. Will be replacing with stainless.
M**H
Boating knife
This is a good knife with a holster that requires a simple improvement in design. The knife reases itself and falls out of its holster on unexpected pressure. I have almost lost it twice during 3 hours of wearing it!
P**D
Divers knife
Great little item, very easy to use, knife and sheath has a good lock system. Thanks 👍
L**R
Knife doesn't fit into holster
This is a small knife 15cm /6" total length (Blade 6.5cm /2.5"). This is what I wanted but the knife cannot be fitted into the holder so that is useless and other reviews indicate it's poor quality. So I'm going to buy another knife and return this as I can't find a holder for it. The serrated edge feels sharp enough for cutting nets and lines.
C**N
Utensilio práctico y ligero.
R**T
Klein kompakt
C**E
Ottimo l ho comprato per le patelle e ha fatto in pieno il suo dovere
C**R
La funda del cuchillo no cierra como debería, no tieneningúnseguro, lo pierdes sin darte cuenta, a tres buzos que he conocido les a pasado lo mismo.
G**.
compatto ed economico
Trustpilot
3 weeks ago
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