---
product_id: 58179113
title: "K-JackTactical Dive Knife,for Scuba Diving, Snorkeling and Water Sports, Black, 76.2 mm (0550019000000A)"
brand: "seac"
price: "1666729₫"
currency: VND
in_stock: false
reviews_count: 3
category: "Seac"
url: https://www.desertcart.vn/products/58179113-k-jacktactical-dive-knife-for-scuba-diving-snorkeling-and-water
store_origin: VN
region: Vietnam
---

# Universal attachment kit included 76.2 mm tempered blade Blunt tip doubles as screwdriver K-JackTactical Dive Knife,for Scuba Diving, Snorkeling and Water Sports, Black, 76.2 mm (0550019000000A)

**Brand:** seac
**Price:** 1666729₫
**Availability:** ❌ Out of Stock

## Summary

> 🔪 Dive sharp, stay ready — the ultimate tactical edge beneath the waves!

## Quick Answers

- **What is this?** K-JackTactical Dive Knife,for Scuba Diving, Snorkeling and Water Sports, Black, 76.2 mm (0550019000000A) by seac
- **How much does it cost?** 1666729₫ with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.vn](https://www.desertcart.vn/products/58179113-k-jacktactical-dive-knife-for-scuba-diving-snorkeling-and-water)

## Best For

- seac enthusiasts

## Why This Product

- Trusted seac brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Compact & Lightweight:** Slim 4.54 g profile fits comfortably without bulk, perfect for professional divers and water sports enthusiasts.
- • **Trusted Dive Companion:** Popular among scuba and free divers for safety, utility, and quick access during critical underwater moments.
- • **Multi-Functional Design:** Blunt tip prevents accidental damage and doubles as a reliable screwdriver—your ultimate dive multitool.
- • **Universal Attachment Kit:** Includes adaptable mounting options for secure carry on various gear setups, ensuring readiness on every dive.
- • **Precision-Engineered Blade:** 76.2 mm tempered steel blade with dual-edge smooth and serrated cutting surfaces for versatile underwater tasks.

## Overview

The SEAC K-Jack Tactical Dive Knife features a 76.2 mm tempered steel blade with dual-edge smooth and serrated sections plus a line cutter notch. Its blunt tip doubles as a screwdriver, enhancing functionality while preventing gear damage. Designed for scuba diving, snorkeling, and water sports, it comes with a universal attachment kit for versatile mounting options. Lightweight and compact, this knife is a trusted tool for underwater professionals seeking reliability and multi-use performance.

## Description

A diver's knife is truly a tool - useful for tasks from cutting fishing line to pointing out marine life to signaling to a dive buddy by knocking on your scuba tank. The Seac knife is a well-balanced divers knife with a strong tempered blade that is very popular with scuba divers and free divers alike.

Review: does not fit over 2 inch nylon web belt without some modification - with a little modification in the workshop i widened the 1.5 inch belt slot to 2 inches so it would fit on my new SCUBA backplate waist belt
Review: Doesn't attach to BCD attachment points. - I bought this little knife to use as an emergency tool while scuba diving. This will not fit the knife attachment points on the BCD. The holes for the knife sheath attachment are too narrow. Even if you could get it to attach, the accuracy screws are too short to make contact with the nut to secure the knife sheath in place. There is also a kit included to attach to LP inflator hose. I did not use this option for several reasons. I don't want anything sharp near my inflator hose while sheathing the knife. My regulator set travels on the plane with me and I cannot have this attached to my hose and carry it on a plane. You would need to carry a screwdriver and remove and replace at destination. Now the knife sets on a shelf in the closet and has not and is not being used. I recommend purchasing a line cutter or full size dive knife.

## Features

- The blunt tip prevents accidental damage to the jacket bag and makes it possible to use the knife as a screwdriver
- Universal kit for Attachment
- Double-edge, smooth and serrated, and line cutter notch.
- It is possible to use the knife as a screwdriver

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B078HFPLBT |
| Best Sellers Rank | #825,845 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) #219 in Divers' Knives & Shears |
| Brand Name | SEAC |
| Color | Black |
| Customer Reviews | 3.8 3.8 out of 5 stars (8) |
| Date First Available | December 20, 2017 |
| Included Components | Seac K-JackTactical Dive Knife,for Scuba Diving, Snorkeling and Water Sports |
| Item Dimensions LxWxH | 11.81 x 1.97 x 4.33 inches |
| Item Package Dimensions L x W x H | 8.82 x 7.17 x 1.22 inches |
| Item Weight | 4.54 g |
| Manufacturer | SEAC |
| Number of Items | 1 |
| Package Weight | 0.17 Kilograms |
| Part Number | 0550019000000A |
| Size | 76.2 mm |

## Images

![K-JackTactical Dive Knife,for Scuba Diving, Snorkeling and Water Sports, Black, 76.2 mm (0550019000000A) - Image 1](https://m.media-amazon.com/images/I/61v3XOtUTNL.jpg)

## Questions & Answers

**Q: Blade length, overall length, type steel, 304, J2, 420; ?????**
A: Blade length: 54 mm
Total length: 150 mm
Blade material: Stainless Steel

## Customer Reviews

### ⭐⭐⭐⭐⭐ does not fit over 2 inch nylon web belt without some modification
*by B***T on June 8, 2022*

with a little modification in the workshop i widened the 1.5 inch belt slot to 2 inches so it would fit on my new SCUBA backplate waist belt

### ⭐⭐ Doesn't attach to BCD attachment points.
*by A***. on June 16, 2022*

I bought this little knife to use as an emergency tool while scuba diving. This will not fit the knife attachment points on the BCD. The holes for the knife sheath attachment are too narrow. Even if you could get it to attach, the accuracy screws are too short to make contact with the nut to secure the knife sheath in place. There is also a kit included to attach to LP inflator hose. I did not use this option for several reasons. I don't want anything sharp near my inflator hose while sheathing the knife. My regulator set travels on the plane with me and I cannot have this attached to my hose and carry it on a plane. You would need to carry a screwdriver and remove and replace at destination. Now the knife sets on a shelf in the closet and has not and is not being used. I recommend purchasing a line cutter or full size dive knife.

### ⭐⭐ Broke on first use
*by R***K on July 11, 2022*

I really liked this knife, but the sheath broke on the first time out, and the knife fell out and is sitting somewhere on the bottom of Papagayo Bay in Costa Rica. I bought it to go on my Seac BCD, and I wouldn't call the attachment perfect (despite the fact that they're both from the same brand, and should pair up seamlessly), but it was fine. But literally the first time I had it in the water, the little clip on the sheath that holds the knife in place broke, and the knife came out and disappeared. To whoever finds the knife, enjoy it. It seems to be a good quality blade, and is sharp. Just don't trust the sheath. Pic attached.

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*Product available on Desertcart Vietnam*
*Store origin: VN*
*Last updated: 2026-04-26*