Kizer Willumsen Perock Flipper Knife Black Titanium (3.5" Satin) Ki4485

MSRP: $298.00
Our Price: $228.00
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Item #BHQ-36468


  • Overall Length:7.75"
  • Blade Length:3.50"
  • Cutting Edge:3.00"
  • Blade Thickness:0.15"
  • Blade Material:CPM-S35VN
  • Blade Style:Drop Point
  • Blade Grind:Hollow
  • Finish:Satin
  • Edge Type:Plain
  • Handle Length:4.25"
  • Handle Thickness:0.49"
  • Handle Material:Titanium
  • Color:Black
  • Weight:5.96 oz.
  • User:Right Hand
  • Pocket Clip:Tip-Up
  • Knife Type:Manual
  • Opener:Thumb Stud
  • Lock Type:Frame Lock
  • Brand:Kizer
  • Model:Perock
  • Model Number:Ki4485
  • Designer:Mikkel Willumsen
  • Country of Origin:China
  • Best Use:Everyday Carry
  • Product Type:Knife


The Kizer Perock represents a collaboration between Kizer Knives and custom knife maker Mikkel Willumsen. This production version of his Urban Tactical custom maintains the unique handle and blade structure, at a fraction of the cost. It has a titanium handle with a machined grid texture and a black anodization. The handle is contoured for a perfect fit in hand with jimping along the spine for a reliable grip. A blue anodized titanium pocket clip finishes off the design.

  • Proven Mikkel Willumsen custom design with a precision Kizer build.
  • Compound grind blade provides a versatile cutting edge.
  • Reinforced lock bar insert for a solid, dependable blade lock up.

Customer Reviews

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Great Design at a Fair Price
Darren R.
Overall this a great tactical style folder built with outstanding materials and possessing great fit and finish that exceeds many higher priced knives I have handled. I also love the unique blade grind and the flipping action is perfect. And while I initially thought the handle could be a bit longer and created a bit of a hot spot in certain grips, after carrying it for a few days, Iíve come to realize it actually is quite comfortable.
Beautiful Beast
William W.
To me, this is an odd-looking knife, but despite that, it's beautiful. The milling (if that's the right word) on the handle makes it surprisingly grippy, even though there is also a smoothness to it, and very, very attractive. It's not at all too thick, and is very comfortable in my hand. The ergos are really good. The blade flips open without needing any wrist action, but is held enough by the detent that the blade doesn't fall open until you flip it. The blade is, again, a little weird looking, but I really like it, and have nothing quite like it. It needed a little sharpening out of the box, sorry to say. It may be a bit heavy for everyday carry, but on the other hand, that same heavy solidity is one reason why I really like it. It feels like it will always be solid and trustworthy. This thing is totally solid in every way, and is a joy to hold and to own. I just got my first Kizer a few weeks ago, and have been very impressed with their work. The price is very low for a Willumsen, but no quality has been sacrificed here. I'm not going to pull it out in front of my professional colleagues, because I'm sure they would say, "OMG, that's big," and cast funny looks at me, but I'll carry it when I'm not doing my white collar job.