Reviews and Ratings for Benchmade Water Undercurrent Fixed Blade Dive Knife 4.32" CPM-MagnaCut Stonewashed Sheepsfoot Combo Blade, Depth Blue Santoprene Handle, Sonar Gray Injection Molded Sheath - 18040S
Benchmade Water Undercurrent Fixed Blade Dive Knife 4.32" CPM-MagnaCut Stonewashed Sheepsfoot Combo Blade, Depth Blue Santoprene Handle, Sonar Gray Injection Molded Sheathrated 5 stars out of 5 (2 reviews)
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Benchmade Water Undercurrent Fixed Blade Dive Knife 4.32 inch CPM-MagnaCut Stonewashed Sheepsfoot Combo Blade, Depth Blue Santoprene Handle, Sonar Gray Injection Molded Sheath

 

Price: $225.00

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Customer Reviews

Benchmade Water Undercurrent Fixed Blade Dive Knife 4.32" CPM-MagnaCut Stonewashed Sheepsfoot Combo Blade, Depth Blue Santoprene Handle, Sonar Gray Injection Molded Sheath
rated 5 stars out of 5
Stearns
 North Carolina
Apr 25, 2024
Pros: Blade Material
Cons: None

Finally!

Finally, a dive knive with premium steel and build.
Benchmade Water Undercurrent Fixed Blade Dive Knife 4.32" CPM-MagnaCut Stonewashed Sheepsfoot Combo Blade, Depth Blue Santoprene Handle, Sonar Gray Injection Molded Sheath
rated 5 stars out of 5
Zoran
 Be3lgrade, Serbia
Jan 14, 2026
Pros: Blade Material, Blade Sharpness, Finish, Handle Material, Materials, Overall Quality, Weight
Cons: Sheath/Scabbard

An excellent knife for an experienced diving instructor and fisherman

My son bought me your Undercurrent knife for my 70th birthday. The knife is great, but it's not convenient for attaching to my leg while diving. As an experienced dive instructor, I have an idea how this could be solved with a plastic attachment that would screw onto the existing sheath and have guides for the straps to secure it to the leg, as well as openings for a wide belt.