Benchmade Undercurrent Dive Knife Dive Knife Review

By
Andrew Goad
Staff writer at DIVEIN.com
Andy has been an avid diver for many years, honing his skills and passion for the underwater world. As an instructor, scientific diver, and technical diver,...
Rebecca Strauss
Editor at DIVEIN.com
Rebecca has been an avid traveler and scuba diver for many years. She began her editorial career by updating travel guides, which took her all over...

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Over a million blades are made every year from over 300,000 pounds of steel and sharpened in Oregon, USA. It’s what sets Benchmade apart—the dedication to make great knives for discerning buyers. People think Benchmade just means outdoors, hunting, tactical, and everyday knives. But with the new Water line, you can now use your favorite brand under and on top of water.

Sharp out of the box, durable, and great looking, the Benchmade Undercurrent is the perfect boat knife, but one that comes with leg straps so you can take it diving with you. A comfortable Santoprene handle and a sharp sheepsfoot blade make the Undercurrent a cut above.

Let’s dive in and take a closer look at the Benchmade Undercurrent dive knife.

About this review

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Recommended in: Dive Knife

Pros

  • Extremely sharp
  • Very durable
  • Comfortable handle
  • Great sheath
  • Great both in and out of the water

Cons

  • High price point

Benchmade Undercurrent Spec Breakdown and Features

One of the larger knives we tested, measuring in at 9.44 inches (23.95 cm.), the Benchmade Undercurrent is nicely balanced with even weight distribution. Weighing 5.38 ounces (152.5 grams), the Undercurrent feels nice in your hand.

The CPM MagnaCut steel drop-point sheepsfoot design leads to one of the sharpest knives on the market. The 4.32 inch (10.97 cm) blade cuts through even the thickest braided rope. And the Santoprene handle means no slipping while you’re doing the cutting.

Benchmade Undercurrent Impressions

I have been a big fan of Benchmade knives for quite some time, but every knife from Benchmade I’ve used fits in a pocket or on a belt—until now. The Undercurrent is the biggest Benchmade knife I’ve handled, and one of the larger knives on our list.

Even with its bigger size, the Undercurrent is nicely balanced and feels easy to hold. The Santoprene handle is comfortable to hold both in and out of the water, and the length doesn’t make it heavy. Just like every other Benchmade knife I’ve used, the Undercurrent is extremely sharp, absolutely strong, and really nice looking.

During our testing phase, the Undercurrent performed as I expected. It was easy to get in and out of the sheath, and the thumb-tab locking mechanism was easy to manipulate regardless of glove thickness. 

The sharpness of the Undercurrent really shone through during the cutting phase of our testing. The 550-paracord was no match and even the thick, poly-braided dock rope was easy to cut through.

Though the Undercurrent was definitely one of the sharper knives we tested, there are a few others to consider. If you like a folding knife instead of a fixed knife check out our review of the Spyderco Salt 2.

As much as I love this knife, the size is a little big for me personally. Even though it’s balanced and not heavy, it is still bigger than I prefer. While I wouldn’t choose to dive with this knife, I absolutely think it belongs in a dive operation, especially on a boat.

It’s perfect for cutting any rope that is tangled on board, cutting gear in an emergency, or even bringing underwater to cut commercial fishing nets that a smaller knife couldn’t handle.

Do we recommend the Benchmade Undercurrent dive knife?

We do recommend the Benchmade Undercurrent. It is sharp and strong. It will hold up to the dirtiest, hardest work you can throw at it. It is priced a little high, but because it’s Benchmade you know it’s worth what you’ll pay for it.

If you like a larger knife that you can secure to your calf, then this is the perfect knife for you. If you want a great utility knife to keep on your boat, doing all the jobs that a smaller knife might not handle, then again, this is the perfect knife for you.

If, however, you want a smaller knife that is still high quality, we recommend the Benchmade H2O—same company, same quality.

If the price is too high for you, we recommend checking out the SEAC Tajaman. This is a highly durable, sharp knife that won’t break the bank.

Specs & Features

Fixed or foldable fixed
Blade length 4.32 inches (10.97 cm.)
Handle length 5.12 inches (12.98 cm.)
Weight 5.38 ounces (152.5 g)
Blade type straight edge with a serrated portion
Blade material CPM MagnaCut stainless steel
Handle material Santoprene
Blade tip pointed sheepsfoot
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