Penknife, or pen knife, is a small folding knife. [1] Today penknife is also the common British English term for both a pocketknife, which can have single or multiple blades, and for multi-tools, with additional tools incorporated into the design. [2]
Originally, penknives were used for thinning and pointing quills (cf. penna, Latin for feather) to prepare them for use as dip pens and, later, for repairing or re-pointing the nib. [1] A penknife might also be used to sharpen a pencil, [3] prior to the invention of the pencil sharpener. In the mid-1800s, penknives were necessary to slice the uncut edges of newspapers and books. [4]
A penknife did not necessarily have a folding blade, but might resemble a scalpel or chisel by having a short, fixed blade at the end of a long handle.[ citation needed ]
During the 20th century there has been a proliferation of multi-function pocketknives with assorted blades and gadgets, [5] the most famous of which is the Swiss Army knife, referred to in British English as penknives.
A larger folding knife than a penknife, especially one in which the blade locks into place as a protection, as for skinning animals, is referred to by some as a claspknife. [5]
A utility knife is any type of knife used for general manual work purposes. Such knives were originally fixed-blade knives with durable cutting edges suitable for rough work such as cutting cordage, cutting/scraping hides, butchering animals, cleaning fish scales, reshaping timber, and other tasks. Craft knives are small utility knives used as precision-oriented tools for finer, more delicate tasks such as carving and papercutting.
A dagger is a fighting knife with a very sharp point and usually one or two sharp edges, typically designed or capable of being used as a cutting or thrusting weapon. Daggers have been used throughout human history for close combat confrontations, and many cultures have used adorned daggers in ritual and ceremonial contexts. The distinctive shape and historic usage of the dagger have made it iconic and symbolic. A dagger in the modern sense is a weapon designed for close-proximity combat or self-defense; due to its use in historic weapon assemblages, it has associations with assassination and murders. Double-edged knives, however, play different sorts of roles in different social contexts.
A knife is a tool or weapon with a cutting edge or blade, usually attached to a handle or hilt. One of the earliest tools used by humanity, knives appeared at least 2.5 million years ago, as evidenced by the Oldowan tools. Originally made of wood, bone, and stone, over the centuries, in step with improvements in both metallurgy and manufacturing, knife blades have been made from copper, bronze, iron, steel, ceramic, and titanium. Most modern knives have either fixed or folding blades; blade patterns and styles vary by maker and country of origin.
A quill is a writing tool made from a moulted flight feather of a large bird. Quills were used for writing with ink before the invention of the dip pen/metal-nibbed pen, the fountain pen, and, eventually, the ballpoint pen.
The Swiss Army knife is a pocketknife, generally multi-tooled, now manufactured by Victorinox. The term "Swiss Army knife" was coined by American soldiers after World War II because they had trouble pronouncing the German word "Offiziersmesser", meaning "officer’s knife".
A blade is the sharp, cutting portion of a tool, weapon, or machine, specifically designed to puncture, chop, slice, or scrape surfaces or materials. Blades are typically made from materials that are harder than those they are intended to cut. This includes early examples made from flaked stones like flint or obsidian, evolving through the ages into metal forms like copper, bronze, and iron, and culminating in modern versions made from steel or ceramics. Serving as one of humanity's oldest tools, blades continue to have wide-ranging applications, including in combat, cooking, and various other everyday and specialized tasks.
A Bowie knife is a pattern of fixed-blade fighting knives created by Rezin Bowie in the early 19th century for his brother James Bowie, who had become famous for his use of a large knife at a duel known as the Sandbar Fight.
A switchblade is a pocketknife with a sliding or pivoting blade contained in the handle which is extended automatically by a spring when a button, lever, or switch on the handle or bolster is activated. Virtually all switchblades incorporate a locking blade, where the blade is locked against accidental closure when the blade is in the open position. It is unlocked by a mechanism that allows the blade to be folded and locked in the closed position.
The Benchmade Knife Company is an American knife manufacturer based out of Oregon City, Oregon.
A stiletto is a specialized dagger with a long slender blade and needle-like point, primarily intended as a thrusting and stabbing weapon.
A pocketknife is a knife with one or more blades that fold into the handle. They are also known as jackknives (jack-knife), folding knives, EDC knife, or may be referred to as a penknife, though a penknife may also be a specific kind of pocketknife. A typical blade length is 5 to 15 centimetres.
A gravity knife is a knife with a blade contained in its handle, which opens its blade through the force of gravity. This mechanism of opening is fundamentally different from the switchblade, which extends its spring-propelled blade automatically upon the push of a button, switch, or fulcrum lever. The main purpose of gravity opening is that it allows opening and closing to be done with one hand, in situations where the other hand is occupied. Hence, historically they have been issued to parachutists to cut off caught lines, such as lines tangled in trees, a major potential use of the gravity knife.
The penny knife was a originally a simple 18th century utility knife with a fixed blade. It got the name penny knife because it cost 1 penny in England and America towards the end of the 18th century.
In cooking, a chef's knife, also known as a cook's knife, is a cutting tool used in food preparation. The chef's knife was originally designed primarily to slice and disjoint large cuts of beef and mutton. Today it is the primary general utility knife for most Western cooks.
A marking knife or striking knife is a woodworking layout tool used for accurately marking workpieces. It is used to cut a visible line, which can then be used to guide a hand saw, chisel or plane when making woodworking joints and other operations. They are generally used when marking across the grain of the wood, with scratch awls better suited for marking with the grain.
Ernest R. Emerson is an American custom knifemaker, martial artist, and edged-weapons expert. Originally an engineer and machinist in the aerospace industry, Emerson became a knifemaker by producing knives for a martial arts class and making art knives early in his knifemaking career. In the 1980s he became better known for his combat knives and popularizing a style of knife known as the Tactical-folder.
A hunting knife is a knife used during hunting for preparing the game to be used as food: skinning the animal and cutting up the meat. It is different from the hunting dagger which was traditionally used to kill wild game.
Knife sharpening is the process of making a knife or similar tool sharp by grinding against a hard, rough surface, typically a stone, or a flexible surface with hard particles, such as sandpaper. Additionally, a leather razor strop, or strop, is often used to straighten and polish an edge.
The CQC-6 or Viper Six is a handmade tactical folding knife with a tantō blade manufactured by knifemaker Ernest Emerson. Although initially reported as the sixth design in an evolution of fighting knives and the first model in the lineup of Emerson's Specwar Custom Knives, Emerson later revealed that the knife was named for SEAL Team Six. It has a chisel-ground blade of ATS-34 or 154CM stainless steel and a handle made of titanium and linen micarta. The CQC-6 is credited as the knife that popularized the concept of the tactical folding knife.
A fighting knife has a blade designed to most effectively inflict injury in close-quarters physical confrontations. The combat knife and the trench knife are examples of military fighting knives.
upon your knee with the back of a penknife,
As he came along in the train, he had been sharpening a pencil, and the sudden jolt of the engine as it drew up at a station had driven the penknife against his face...
