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🔪 Dive sharp, dive smart — own the depths with Borg!
The Cressi Borg Diving Knife features a robust 5.51-inch tempered stainless steel blade with dual edges—one straight, one serrated—designed for maximum versatility underwater. Its futuristic design includes a secure locking sheath with one-hand release and two adjustable leg straps for stability, making it an essential, reliable tool for professional and recreational divers alike.



















| ASIN | B00BLYEV7C |
| Age Range Description | Adult |
| Age range (description) | Adult |
| Best Sellers Rank | 68,672 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) 9 in Divers' Knives & Shears |
| Blade Edge | Flat |
| Blade Length | 5.51 Inches |
| Blade Material | Stainless Steel |
| Blade Shape | Straight Back |
| Brand | Cressi |
| Brand Name | Cressi |
| Colour | Black |
| Country of Origin | Taiwan |
| Customer Package Type | Standard Packaging |
| Customer Reviews | 4.4 out of 5 stars 132 Reviews |
| Global Trade Identification Number | 08022983053899 |
| Handle Material | Stainless Steel |
| Included Components | Sheath |
| Included components | Sheath |
| Item Length | 10.43 Inches |
| Item Type Name | Cressi Borg Scuba Diving Blade Knife - Metallic/Black/Grey |
| Item Weight | 0.3 Kilograms |
| Manufacturer | Cressi |
| Model Name | Borg |
| Model Number | RC559100 |
| Model name | Borg |
| Part Number | RC559100 |
| Product Care Instructions | Hand Wash Only |
| Recommended Uses For Product | Diving |
| Recommended uses for product | Diving |
| Size | 14 cm |
| Special Features | Locking Blades |
| Special feature | Locking Blades |
| Style | Diving Knife |
| Theme | Sport |
| UPC | 843607041645 |
M**E
As described
Not very magnetic👍hard steel.Hard to sharpen but really nice knife.
C**S
Resistance is futile
BORG, Excellent diving knife , fits well in your hand , sharp enoug for any job, I like it
R**S
Too big
Never even took out the packet so can't comment of sharpness or usability but just too big for me. I may have got mixed up between the blade length and overall length.
A**E
Ich bin sehr zufrieden mit dem Messer
Das Messer ist sehr gut. Ich benutze es zum Angeln und dort ist es sehr praktisch. Ich kann es nur weiter empfehlen.
M**E
quality
great quality knife. thank you
E**H
Top Messer
Ich bin Durchsschnitsuser für Messer. Nutze es zum Bogenschießen. Dafür ist es echt super. Sehr scharf, die Halterung ist sehr gut, nur die Gurte und die Schlaufen an der Halterung dafür sind wenig durchdacht, was aber für mich keine Minderung der Qualität des Messers darstellt.
H**H
Disappointing quality
Strap broke on second use and base between blade and handle is rusting after 7 dives. Blade feels sturdy and sharp but overall super disappointing quality, especially for Cressi.
N**T
Solid budget knife for spearfishing but faulty holster
I used this knife for over a year on twenty plus salt water apnea and spearfishing dives. Pros: * Blade itself is stainless steel and does not rust * Strong blade good for multiple tasks * Knife point great for braining fish * Serrated edge decent at cutting rope * Looks cool. Also get compliments when shore diving * Easy to get in and out of sheath Cons: * The metal at the base of the blade rusts. Mine has rust spots * Needs to be sharpened regularly for best performance * Easy to lose knife. You have to double check everytime that you reinserted the knife into the sheath perfectly. I actually lose this knife on a dive but found it later that afternoon on a second dive. Edit: Lost this knife in the sea three days after writing this review. Still a 4 star knife performance wise but the holster really needs a lot of work. Will be getting a different Cressi knife that has a more secure holster.
Trustpilot
5 days ago
2 days ago