Showing posts with label Ken Onion. Show all posts
Showing posts with label Ken Onion. Show all posts

Sunday, January 25, 2026

Thanks, Betsy!

I just got a Kershaw Leek with the 1776 Betsy Ross design.  I think it's pretty damn icey!  Boths side of the smooth handle pays homage to Betsy Ross's original flag.


The story goes, George needed a symbol and Betsy stepped up


Kershaw's Leek, Ross Commemorative

I've always admired Kershaw knives, especially the Leek design line.  Kershaw expanded the line to include Scallon and Chive, both employing Ken Onion's SpeedSafe design and sliding safety.  I remember a larger version of the Leek called the Ramp.  Ramps are stronger garlic-like onions popular in West Virginia.  But you know what they say: ramp eaters sit in the back of the bus. 

The Kershaw Ramp is discontinued.  I liked the bigger, bulkier knife.

I wrote about Kershaw's Launch 13 at https://knifesearch.blogspot.com/2024/02/launch-13.html.  So, forgive me if I repeat a bit.

Pete Kershaw formed his own cutlery company based on his designs in 1974.  In those days, his manufacturing was done primarily in Japan by Ichiro Hattori in Seki City.  His early work caught the eye of the knife industry, and by 1977, Kershaw became a wholly owned subsidiary of the KAI Group.  They opened a U.S. production facility, which Kershaw eventually outgrew and moved in 2003 to Tualatin, Oregon.  Oregon has knife-friendly laws, and you'll find many companies with facilities there.


Ross Leek, complete with sliding safety on left and clip on the right

During the early stages of growth, Pete Kershaw worked with Ken Onion, Ernest Emerson, Grant and Gavin Hawk, Frank Centofante, Rick Hinderer, and RJ Martin.  That's quite a rogue's gallery of famous knife makers.

Kershaw introduced the Leek in 1998.  Ken Onion envisioned the Leek as a fusion of form and function.  He wanted a combination of elegant aesthetics with uncompromising performance.  The Leek, with its smooth handle and dagger-like blade, caught the world's attention.  Contributing to this was the introduction of the flipper and the SpeedSafe torsion opener.


Closed M-16 with Carson Flipper

Kit Carson designed a flipper, often referred to as the "Carson Flipper," for CRKT's M-16 in 1999.  The combination of flipper and assisted opening was an earthquake across the knife landscape.


When open the M-16 flipper becomes part of the guard

I'm going to skip who invented the flipper discussion and resulting flame war, to say that the Carson Flipper extends outward to form a finger guard when open, while the Leek's flipper, when open, is hidden in the knife's handle.  It is a matter of looks and end purpose.


When open the Leek's flipper blends into the handle


The defining feature of the Kershaw Leek is its innovative assisted-opening mechanism.  Assisted-opening knives hit the market satisfying a significant part of the growing demand for legal "switchblades."  Many states tried to ban it, but they stumbled on the legal definition: an automatic knife has a button or mechanism that releases the blade when pressed.  Assisted-opening knives require you to start opening the blade before the assist takes over.

It is widely accepted that the first assisted-opening knife was Meyerco's "Strut N' Cut", designed by Blackie Collins in 1995.  It was Kershaw's SpeedSafe mechanism that brought the technology to main street knife buyers.

A simple spring applies tension to the closed blade, securing it in your pocket.  When the flipper is depressed, the butt end of the blade slides from a closed position to a shape that utilizes the energy stored in the spring.  Cool design, isn't it?


Ross Leek

The Leek has a high shoulder, concave grind, drop point blade.  What appear to be opening studs on either side of the blade are actually over-travel stops.  They are too short and poorly placed to act as opening studs.  Use the flipper; it's much easier.  The blade is bead blasted, giving it a matte finish, and ground from Sandvik 14C28N stainless steel.  This steel is a high-quality Swedish martensitic stainless steel from Alleima (formerly Sandvik Steel).  14C28N is known for its excellent balance of hardness, corrosion resistance, and edge retention, while remaining easy to sharpen with traditional stones.

The composition?  I thought you would never ask.

0.62% Carbon,

14% Chromium,

0.1% Nitrogen,

and a trace of other elements.

It is a well-thought-of steel used by manufacturers like Civivi, Ruike, Boker, Bestech, and Real Steel, among others.

The Leek weighs 3.0 ounces and features a pocket clip, lanyard hole, and sliding lock that prevents the blade from opening.  You can adjust the tension on the opening lock if you desire.  The knife locks open with a liner lock that secures the blade open.

I wouldn't take this as my only knife if I were spending a month in the Alaskan bush.  But if that's all you had, you could make do.  This is an everyday carry for work, going about town, a day at the range, and everything in between.


Ready to cut

But I have to say, I suspect I'd make this one a barbecue knife.  You know, carry it when I'm out with friends to show off or sitting in the backyard with the grill and a beer.  The finish is too nice, in my opinion, to get scratched.

You can find them at many purveyors of sharpened edges, or at https://kershaw.kaiusa.com/leek.html for $100.  It's a good deal, no matter how you slice it.

 


Saturday, June 27, 2020

When it Rains.....


Ken Onion made his first knife in 1991 and hasn’t looked back.  He is a prodigious innovator holding 36 design patents on different items including locks, mechanisms, and knife designs.

Ken Onion Designed Rain Paring Knife


And frankly, I really love his designs.  So when I had the chance I picked up a kitchen knife from his Rain collection from Chef Works.  The instantly visible, the most striking aspect of the knife is the highly polished blade with a textured rain drop pattern.  Hence the name.  The pattern on the blade is designed to reduce food drag caused by surface tension and drag coefficient by creating multiple pockets of air.

Beats me.  I know drag coefficient is used in calculating friction forces which resist movement. I’m sure if you spent 8 hours a day cutting food, you’d want reduced food drag too!

Reverse paring knife
The blade is on top


The business end is a 3 inch reverse paring blade made from Carpenter’s DBZ-1 stainless steel.

DBZ-1 isn’t made from exotic elements.  The bulk of it is iron.  Carbon is between 0.6 and 0.75% with chromium falling in line with 12.5 to 15.3%.  There’s only 0.75% molybdenum  and a smattering of other elements.  The key to this martensitic steel is that it is designed to produce a network of fine carbide particles throughout the steel.  This produces a steel that takes a remarkable edge and holds it.

The most interesting part is the reverse edge.  The curved blade has the sharp, business edge on the top of the blade.  You need to be careful gripping the knife, because the finger grooves are on the opposite side from the edge.  I can’t tell you how many times I wanted to put my thumb on the razor sharp edge.  Just be real careful with this one.

They even warn you in the box.


The handle is shaped from G-10, a high-pressure fiberglass laminate.  It is made by stacking multiple layers of epoxy resin soaked fiber glass sheets and curing under high compression.  G-10 is the toughest of the glass fiber resin laminates.  It is almost indestructible.

This is a glamorous knife.  The blade catches the light and winks as you move it.  The handle with it’s finger grooves feel really good.  It was Blade magazine’s Kitchen Knife of 2013.
But you better watch that blade.  You may not shoot your eye out, but you’ll cut you finger off.