All About Pocket Knives

I've collected knives for a long time and I've never quite got a handle on what differentiates a half whittler fron a half stockman and a pen knife. I realize that a pen knife usually has a pen blade as the secondary blade, but that is not always the case.
Any ideas?
Thanks!
Keith

keithw wrote: ↑Fri Dec 12, 2025 4:32 pm I've.....

There may be an answer here:
https://www.allaboutpocketknives.com/kn ... hp?t=86166

I'll take a stab at your question. In recent decades Case adopted common slang naming Whittlers assembled without their second small blade Half Whittlers. Our traditionalists hate the name half whittler. I have not seen any of them object to naming four, five or six bladed knives assembled in frames that are most often assembled as three blade stockmans four blade stockman, five blade stockman or six blade stockman. Logically than it is O.K. to recognize the frame in a stockman that has one short blade pivoting in the end opposite the master blade. Doing so provides more information than calling it a pen knife. The difference between a half whittler and a two blade stockman is the frame. Either can be called a pen knife if that's your preference. I only use half whittler for knives that were named that by their manufacterer. If the knife was not made in a time period when the manufacturer was using half whittler than I call them two blade whittlers. Along with family tradition my Webster's Dictionary only defines pen knife as "a small pocket knife" so I do not call medium or large two blade stockmans or whittlers pen knives.

We don't all worship Bernard Levine.

If you look at a Case 6208, you will notice a couple of things that are NOT like a normal pen knife. First, the blades are not the same thickness (just like a normal whittler), the pen blade is made of a thinner stock than the master. Second, because of this, there is a part, which a pen knife doesn't have, called a "catch bit", a small spacer which allows the thinner pen blade to fit snugly on the spring and against the liners. This type of construction is found on quite a few brands and styles of knife and warrants, IMHO, a descriptive name. JMO.

Love him or hate him and many do both, I tend to stick to the patterns named by Levine in his Levine’s Guide to Knives and Their Value.

And I don’t care for the cute abbreviations that are popping up these days, like Remmies and Robies. They’re men’s pocketknives, not Beanie Babies.

I agree that the handle pattern is what the knife is excluding whittlers which name is derived from blade configuration. Case with their "half whittler" was just a marketing ploy. I really dislike "half congress", congress is a handle pattern and available with two, three, four, six, and even eight blades. Congress knives can be whittlers with whittler blade configuration or jacks with both blades at one end.

I do not worship B Levine.

RobesonsRme.com wrote: ↑Sun Jan 04, 2026 3:19 pm Love him or hate him and many do both, I tend to stick to the patterns named by Levine in his Levine’s Guide to Knives and Their Value.

And I don’t care for the cute abbreviations that are popping up these days, like Remmies and Robies. They’re men’s pocketknives, not Beanie Babies.

EXACTLY!!