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Ballpoint pen knife

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Multi-tool pocketknife with a concealed blade

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A common ballpoint pen knife with an unsheathed blade

Aballpoint pen knife is amulti-tool pocketknife consisting of a blade concealed inside an ordinary-lookingballpoint pen. The blade, typically 50 to 125 millimetres (2 to 5 in) long, is hidden when not in use. They first appeared as custom-made pens from various custom knife makers, and were later mass-produced by other companies.

Uses

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Not the be confused with tactical pens, which are a multi-purpose pen that can write but also shatter glass etc., pen knives such are designed forself-defense due to their ease of concealment. Their small size renders them impractical as weapons in elaborate combat, but their slim profile allows them to cause great harm in close-range combat with an element of surprise.^{[citation needed]}

A knife of this type can be used as a standardletter or package opener, or for any purpose suitable for a knife of its size. There are many versions, including variants with special purposerazors for shaving.^{[citation needed]}

Kinds of blades

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All ballpoint pen knives come with straight blades, which are easier to conceal than curved blades. These 51-to-127-millimetre (2.0 to 5.0 in) blades are fixed to the topmost part of the pen, hidden inside a hollow cap, serving as both the pen's end and the knife'ssheath. Common blades may be the single-edged thrusting type or the double-edgeddagger type, or even an unsharpenedstiletto type point that can only thrust. Blades can be smooth-edged orserrated. The Swiss Army Spectrum Series S.A.S.S. Ballpoints look like ballpoint pens and can write. They have an array of foldaway blades and tools including knife, scissors, file, opener, screwdriver and battery-powered light.

Legality

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Ballpoint pen knives, because they allow a knife to be disguised as an innocuous object, are subject to restrictions or prohibitions in some jurisdictions which could be deadly. For example, they are not available for sale inCalifornia orCanada.

References

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v t e Knives anddaggers
List of daggers List of blade materials
Kitchen and table knives	Boning Boti Bread knife Butcher knife Butter knife Caidao Cheese knife Chef's knife Cleaver Electric knife Fillet knife Grapefruit knife Lame Mezzaluna Parmesan knife Pizza cutter Splayd Steak knife Tomato knife Japanese kitchen knives Deba bōchō Maguro bōchō Nakiri bōchō Santoku Sashimi bōchō Udon kiri Unagisaki hōchō Usuba bōchō Yanagi ba
Otherknives	Aircrew Survival Egress Knife Athame Balisong/Butterfly Ballistic Ballpoint pen knife Bayonet Boline Bolo Boot knife Bowie Cane knife Ceramic knife Clip point Coin slasher Combat knife Commander Corvo CQC-6 Deba bōchō Diving knife Drop point Fairbairn–Sykes fighting knife Gerber Mark II Ginsu Golok Gravity knife Guna Hacking knife Higonokami Hunting knife Husa knife Ivan's Knife Jacob's ladder Karambit Kard Kirpan Kitchen knife Kukri Laguiole knife Machete Mandau Marking knife Military knife wz. 98 Misericorde Mora knife Multi-tool Navaja Neck knife Nontron knife Opinel knife OSS Escape Utility Knife Palette knife Pantographic knife Parang Penknife Penny knife Pesh-kabz Pirah Pocketknife Phurba Putty knife Puukko Rampuri Resolza Sabatier Sami knife SARK Scalpel Seax Sgian dubh Sharpfinger Sheath knife Shiv Sliding knife Smatchet SOG Knife Straight razor Strider SMF Survival knife Swiss Army knife Switchblade Taping knife Throwing knife Trench knife Tumi Ulu Utility knife Verlängerungsmesser Warrior knife Wedung X-Acto Yarara Parachute Knife Yatagan
Daggers	Anelace Applegate–Fairbairn fighting knife Arkansas toothpick BC-41 Bagh nakh Balarao Baselard Bichuwa Bollock dagger Cinquedea Dha Dirk Ear dagger Emeici Facón French Nail Gunong Hunting dagger Jambiya Jile Kabutowari Kaiken Kalis Katar Khanjali Khanjar Kris Kunai Liaoning dagger Mark I trench knife Microtech Jagdkommando Parrying dagger Poignard Pugio Push dagger RAF Aircrew Knife Rondel dagger Seme Shobo Sica Stiletto Tantō U.S. Marine Raider stiletto V-42 Yoroi-dōshi
Manufacturers	Aitor Knife Company Al Mar Knives American Tomahawk Company Aritsugu Benchmade Böker Buck Knives Camillus Cutlery Company Cattaraugus Cutlery Company Chris Reeve Knives Chroma Cnife Clauss Cutlery Company Cobray Company Cold Steel Columbia River Knife & Tool Cuisinart Cutco Dalian Hanwei Metal Dexter-Russell Ek Commando Knife Co. EKA Emerson Knives F. Dick Fällkniven FAMAE Fiskars Gerber Legendary Blades Füritechnics Glock Ges.m.b.H. Imperial Schrade Ivan's Ka-Bar Kershaw Knives Korin Japanese Trading Company Kyocera Leatherman Mad Dog Knives Marble Arms Medford Knife and Tool Microtech Knives Morseth Muela Murphy Knives OLFA Ontario Knife Company Opinel Randall Made Knives Ranz Cuchillos Rösle Sabatier Shun Cutlery Slice, Inc. SOG Specialty Knives Spyderco STI Knives Strider Knives Thiers Issard TOPS Knives Tramontina Victorinox W. R. Case & Sons Cutlery Co. Carl Walther GmbH Wenger Western Knife Company Wilkinson Sword Wüsthof Yoshida Metal Industry Global Zero Tolerance Knives Zwilling J. A. Henckels
Knifemakers	Rex Applegate James Black Tom Brown Jr. Blackie Collins John Nelson Cooper Jack W. Crain Ernest Emerson Jerry Fisk Bill Harsey Jr. Phill Hartsfield Gil Hibben Jimmy Lile Bob Loveless William F. Moran Ken Onion Ralph Osterhout Bo Randall Chris Reeve A. G. Russell Jody Samson William Scagel Mike Snody Robert Terzuola Michael Walker Buster Warenski Daniel Winkler
Associations	American Bladesmith Society Cutlery and Allied Trades Research Association Knifemakers' Guild
Category:Knives /Daggers

v t e Pens
Ink pens	Ballpoint Retractable Brush pen Counterfeit banknote detection pen Demonstrator Dip Fountain Gel Marker dry erase highlighter paint permanent UV Quill Rastrum Reed Qalam Rollerball Ruling Skin Technical
Non-ink	Narayam Stylus
Digital pens	Active pen Digital pen Light pen Stylus
Parts and tools	Blotting paper Inkwell Nib flex nib Penknife Pounce powder Retipping
Inks	Alizarine Fountain pen ink India Iron gall Pact Stark's
People	James Mylne John J. Loud Joseph Gillott László Bíró
Related topics	Penmanship Calligraphy Lettering Pen painting Ballpoint pen artwork Birmingham pen trade Pen Museum Ballpoint pen knife Pen gun Pen spinning Writing implement List of types, brands and companies
Category

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Uses

Kinds of blades

Legality

See also

References