

🔪 Cut above the rest — your lifetime adventure companion!
The Benchmade Undercurrent 18040S features a 4.3-inch CPM-MagnaCut sheepsfoot blade with partial serrations, paired with a durable, slip-resistant Santoprene handle. Designed for outdoor enthusiasts, it excels in fishing, camping, and bushcraft tasks. Lightweight and ambidextrous, it offers unmatched versatility and comfort. Backed by Benchmade’s lifetime free sharpening and maintenance service, this knife is engineered to be your reliable partner for life.












| ASIN | B0D1RL6CJR |
| Age Range (Description) | Adult |
| Best Sellers Rank | #389,672 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) #755 in Camping Fixed-Blade Knives |
| Blade Edge | Sheepsfoot |
| Blade Length | 4.3 Inches |
| Blade Material | Stainless Steel |
| Blade Shape | Sheepsfoot |
| Blade Type | Sheepsfoot |
| Brand | Benchmade |
| Brand Name | Benchmade |
| Color | Depth Blue |
| Customer Reviews | 4.5 4.5 out of 5 stars (14) |
| Date First Available | April 15, 2024 |
| Hand Orientation | Ambidextrous |
| Handle Material | Santoprene |
| Included Components | Knife |
| Item Dimensions LxWxH | 4.33 x 1.57 x 1.18 inches |
| Item Length | 9.43 Inches |
| Item Package Dimensions L x W x H | 11.81 x 4.8 x 1.81 inches |
| Item Weight | 5.38 Ounces |
| Manufacturer | Benchmade |
| Model Name | Undercurrent |
| Package Weight | 0.55 Kilograms |
| Part Number | 18040S |
| Product Care Instructions | Hand Wash Only |
| Recommended Uses For Product | Camping, Hiking |
| Reusability | Reusable |
| Shape | Rectangular Prism |
| Special Feature | Benchmade Knife |
| Style | Undercurrent 18040s |
| Suggested Users | unisex-adult |
| Theme | Outdoor Adventure |
| UPC | 610953207946 |
D**K
It is well-built, comfortable, and corrosion resistant.
This is a fantastic knife for anything. It preps food, it cuts boxes, it follows you into the lake, river, or ocean without complaint. It is razor sharp, holds its edge, and can be used for hard work. It has spoiled me on other knives because of its versatility. Sure, the sheath doesn't have an attachment, but I through a discrete carry clip on it, problem solved. You can't go wrong with this knife.
D**S
What an awesome blade! Sheath sucks though
I love this thing! I've used it for everything from food prep to bushcraft and fishing. It holds an edge for a very long time and the handle is super comfortable. My only gripe is the sheath. For the price you pay, it should come with a belt loop or some way to carry it but it doesn't. Also, the little tab you have to press to unsheath the knife feels like it may break after a hundred uses or so. That being said, I still believe that this knife is worth a purchase
B**N
Nice quality, but watch the surface rust.
Feels good in your hand, great quality.. but it is getting surface rust faster than I anticipated. Make sure you're rinsing it down after every outing.
D**D
Knife is great , holster IDK
The knife is amazing, only down fall very limited on how to attach the holster to you, no clips , no real ulitclip fastening points ,
S**N
Very solid pick
Almost cut my finger off (my fault not the knives). Excellent craftsmanship and love this knife. One of my Go to knives!
Trustpilot
3 weeks ago
1 week ago