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California Clip Blade

A pocket knife blade with the clip beginning far back from the point perhaps one half inch from the handle.


Camillus Cutlery®

Established about 1875 and in the 1890s and early in the 20th Century made most of the really great knives now sought after by collectors. (Knives like the OVB and others). Today they are probably making the Remington knives; however, they also began making the OVB knives again. Good knives are generally much under rated.


Campers (See Scout, Utility)

This knife will have a Boy Scout Type Blade plus three utility blades



A pocket knife with the handle ends curved up to make a canoe shape.



A knife designed to do the delicate work of skinning around the eyes and lips of trophy animals; this work is called caping because you are removing the cape of the animal.


Caps (see Bolsters)

The metal reinforcement at the non-blade end of a folding knife handle.



The mineral that transforms iron into steel. High-carbon steel results when .5 percent or more carbon is present. Only a bare .8+ can be absorbed by the iron, the balance in extremely high carbon steel goes to add hardness. Expressed as C.


Case Knife

An old time term much used by hunters until the 1940s now almost never used in the old meaning of a large folding knife or a fixed blade with a sheath. Today it would only be used to mean a knife made by the W. R. Case & Sons Company.


Case, W. R. & Sons

Once the most widely distributed of all American made pocket knives. Has passed through several hands in the past 20 years and is now making a comeback in the hands of the Zippo Lighter family. Look for real improvement.


Cattlemans knife

A knife with a clip or spear master blade, a spey blade and a leather punch. Made with many handle shapes including an even end stock.



See Alumina Ceramic, and Zirconia


Champagne Pattern

Has a blade, a wire cutter and cork screw.

Chipped Flint

Chipped Flint

The first knives were probably broken pieces of flint or some other form or chert (jasper, agate, novaculite, quartz or other stone with a conchoidal fracture) exposing sharp edges. Many people are knapping flint in the old ways and some are fastening these blades into stag or wood handles.


Chital (see Axis - India Stag)

The smaller of the two Indian and SE Asian deer that furnish antler for the knife industry; these are all shed horn harvested in the jungle by natives.



The cut away area between the edge and the tang of a pocket knife blade and between the edge and the guard of a straight knife. The choil may or may not have enough space for a finger, it's true purpose is to allow the edge to be sharpened all the way to the tang in a pocket knife and to the end of the edge in others. Any reference of choil and finger space or choil and handle is improper.



Produces hardness and better edge holding when combined with other alloying materials. Used in fairly large amounts, it produces a blade that resists rust. Takes over 12.5% to produce high-carbon stainless steels. Expressed as Cr.



A 15th Century Italian dagger, very wide at the hilt; usually used as a left hand dagger. Name means five fingers wide.


Citrus Tester (AKA Melon Tester/Fruit Tester)

Long slip pen blade or long slim spey, slim even end or swell center handle.


Clasp (Handle Shape)

Swell center front only, swell head, bolsters, caps one blade or two.



The two handed sword of the Scots.

Clip Point

Clip Point Blade

A blade on which the back line breaks and slants downward to produce a finer and more useful point.



Increases strength and hardness, and permits quenching in higher temperatures. Intensifies the individual effects of other elements in more complex steels. Expressed as CO.


Coke Bottle (Handle Shape)

Swell Center, Top and Bottom, usually one blade


Collins, Blackie

Founder of the Blade magazine and the most prolific inventor in today's knife world. Died July 20, 2011.


Congress Pattern

An old pen and pocket knife shape, made with two or four blades.generally a pen blade and a larger sheepfoot blade or two of each. The ends are lower than the center of the back of the handle.



Increases corrosion resistance. Expressed as CU.



A small clasp knife without swell center


Cordia wood

Cordia wood is very similar to Teak and is occasionally used as a substitute for Teak in shipbuilding.


Corn Blade (Blade shape)

A special blade for trimming corns on the feet.


Cotton Sampler

A special blade for cutting into cotton bales for samples.



CPM 10V was the first in the family of high vanadium tool steels made by the Crucible Particle Metallurgy process. Crucible engineers optimized the vanadium content to provide superior wear resistance while maintaining toughness and fabrication characteristics comparable to D2 and M2. Since its introduction in 1978, CPM 10V has become recognized worldwide and sets the standard for highly wear resistant industrial tooling. Carbon-2.45%, Manganese-0.50%, Chromium-5.25%, Vanadium-9.75%, Molybdenum-1.30%Rockwell 58-62



CPM 15V is intended for applications requiring exceptional wear resistance. It has more vanadium carbides in its microstructure than CPM 10V and provides more wear resistance and longer tool life in those applications where 10V has proven to be successful. CPM 15V also offers an alternative to solid carbide where carbide fails by fracture or where intricate tool design makes carbide difficult or risky to fabricate.Carbon-3.4%, Manganese-0.5%, Chromium-5.25%, Vanadium-14.5%, Molybdenum-1.3% Rockwell-59-62



CPM (Crucible Particle Metallurgy) 1V is a medium carbon, high alloy tool steel which exhibits high toughness combined with high heat resistance. It is suited for hot or cold applications demanding high impact toughness that also requires moderate wear resistance. Carbon-0.55%, Chromium-4.5%, Vanadium-1.0%, Molybdenum-2.75%, Tungsten-2.15% Rockwell 56-59



CPM 3V is a high toughness, wear-resistant tool steel made by the Crucible Particle Metallurgy process. It is designed to provide maximum resistance to breakage and chipping in high wear-resistance steel. CPM 3V is intended to be used at 58/60 HRC in applications where chronic breakage and chipping are encountered in other tool steels, but where the wear properties of high alloy steel are required. Carbon-0.80%, Chromium-7.50%, Vanadium-2.75%, Molybdenum-1.30% Rockwell 58-60



CPM 9V is designed for use in tooling that encounters severe wear. Its toughness, or cracking resistance, is higher than other high-wear resistant cold work tool steels permitting it to be used in some applications where CPM 10V, D2 or high-speed steels do not have sufficient resistance to cracking. It is usually limited in hardness to about 56 HRC or lower, and is therefore not intended for applications requiring high compressive strength. Carbon-1.8%, Manganese-0.50%, Chromium-5.25%, Vanadium-9.0%, Molybdenum-1.3% Rockwell 53-56



CPM S30V (commonly referred to as S30V) was introduced by Crucible in 2002 in response to demand from the knife industry for a steel with more wear and corrosion resistance and more toughness. It has vanadium added for higher wear resistance and more molybdenum for better pitting resistance. It is also more resistant to edge chipping with superb edge retention. Contains about 1.45% Carbon, 14% Chromium, 2% Molybdenum and 4% Vanadium.


CPM-S60V® (New Name for CPM440V)

2.15% Carbon, 0.4% Manganese, 17% Chromium, 5.5% Vanadium and 0.4% Molybdenum.

Definition:A unique tool steel made by the Crucible Particle Metallurgy process.. It is designed from a 440C stainless base with added carbon and Vanadium for exceptional wear resistance and good corrosion resistance. An excellent candidate to replace ATS-34 and 154-CM.



2.3% Carbon, 14% Chromium, 9% Vanadium and 1% Molybdenum.



With 2.15 Carbon, 0.40 Manganese, 17.0 Chromium, 5.50 Vanadium and 0.4% Molybdenum this is a steel that would be impressive but when you know that it is a Powder Metal steel with the resulting extreme purity, you know that it has to be a great knife steel. Very expensive and not at all easy to work.



Carpenter® CTS® BD1N alloy is a nitrogen-bearing, high-carbon chromium martensitic steel that is balanced to provide superior hardness capability to CTS BD1.

With 0..85-0.95 Carbon, 1.0 Manganese, 0.30 Phosphorus, 0.01 Sulfur, 1.0 Silicon, 15.0-17.0 Chromium, 0.5 Molybdenum, and 0.10-0.15% Nitrogen, this is a steel that can resist corrosion from mild atmospheres, fresh water, steam, ammonia, many petroleum products and organic materials. With a capability of HRC 60-63.



A slight bend at the tang in a knife with two or more blades that allows the blades to close without touching.


Crooked Jack (Handle Shape)

Today called a dog leg Jack.


Crown (Handle Shape)

Originally the crown pattern was a square end cigar pattern. The modern cigar is a square, even end pattern.


Cryogenic Quench

A modern addition to heat treating tool steels. After the normal heat treat the steel is lowered in temperature very low. Before it became widely available with heat-treating firms many makers were using liquid nitrogen and doing it at home.


Curved Jack (Handle Shape)

The handle curves up to the blade.

Curved Regular Jack (Handle Shape)

The handle curves down to the blades.


Custom Knife

The following paragraph is the correct meaning of Custom Knife, however in today's knife world it means a knife not made in a factory, it can be handmade or assembled from mass produced parts. Today the term is totally without meaning.

A Custom Knife is one in which the customer has either designed all or part of the knife OR a knife in which the customer has specified the materials in a makers own design. Selecting one of the listed handle materials in a makers catalog to be put on a blade of the makers design does not make a custom knife.



A curved blade sword sharp on one edge with a strong cover for the hand used on naval vessels in the 18th and 19th Centuries.


Cutlery Steel

Any steel with enough alloying materials that enable it to make good knives; for wide acceptance today that means it must also be stainless. To make good knife blades it must be able to take and hold an edge. Can range from 1070 or 420 to CPM-S60V.