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I designed the ATCF in 1986-87 inspired by my experience with military and security personnel in Central America and the United States. 

The ATCF was the first tactical knife to be fully assembled with screws instead of pins and rivets.
I invented the thumb disk to facilitate opening with both hands. This became a widely copied feature of the ATCF and is used on many other knives by manufacturers around the world.

The ATCF was the first pocket knife to use a checkering on the top which, along with the guard, provides protection and a firm grip. 

The ATCF is one of the most copied knife shapes in the knife world, and as I often like to proudly say, "The ATCF is the shape...that shaped the whole industry!"

Bob Terzuola 

Intended Use: Tactical/Sporting

Type of production: Industrial
Country of Production:Italy
Blade:CPM-MagnaCut 59/61HRC steel
Blade finish: stone washed
Handle: tianio acid stone washed
Blade length: 90mm.
Blade thickness: 4mm.
Length closed: 126m.
Total length: 220mm.
Thickness when closed: 12mm
Weight: 120g.
Closure: Liner lock
Clip: removable, titanium
Packaging: Cardboard box with Fox Knives logos, nylon pouch with "Terzuola" velcro patch
Notes: Design by Bob Terzuola

Fox Knives and designer Bob Terzuola announce an extraordinary Christmas 2024 limited edition series of the new Original Gangster, perfect for collectors and high-end knife enthusiasts.

This limited edition celebrates the Christmas spirit with an exclusive twist.

The Christmas Edition is distinguished by the materials used. The FatCarbon Dark Matter carbon fiber handle gives the knife unparalleled lightness combined with extraordinary strength. The blade, on the other hand, is made of satin-finished Elmax steel, a choice that ensures excellent cutting performance and wear resistance. 

Available in only 350 numbered examples on the blade and box, the Original Gangster Christmas Edition, will be the perfect gift for those who love quality without compromise.

Intended Use: Tactical/Sporting/Collection

Type of production: Industrial
Country of Production:Italy
Blade:Elmax steel 59/61HRC
Blade finish: satin-finished
Handle: FatCarbon Dark Matter with anodized titanium hardware
Blade length: 90mm.
Blade thickness: 4mm.
Length closed: 126m.
Total length: 220mm.
Thickness when closed: 12mm.
Weight: 135g.
Closure: Liner lock
Clip: removable, anodized titanium
Packaging: Cardboard box with Fox Knives logos, nylon pouch with “Terzuola” velcro patch
Notes: Design by Bob Terzuola - Limited and numbered edition on blade and box, only 350 pieces

Condition: Withdrawn from a private collection, previously purchased.
Condition Details: Overall in excellent condition.
Available on the market: NO
Edge: Factory edge.
Blade marks: None.
Handle marks: None.
Box: /
Sheath: /
Manuals, Certificates, and Warranties: /
Inspected and Certified: By our in-house lab.

The Spyderco Bob Terzuola Slipit C131 is a folding knife with a non-locking blade (Ball Joint Mechanism) designed by renowned master knifemaker Bob Terzuola. This model combines elegant design with advanced functionality, making it ideal for both collectors and knife enthusiasts.

Intended Use: Sport / EDC
Production Type: Industrial
Blade Origin: Taiwan
Blade Material: CPM-S30V stainless steel
Blade Treatment: -
Handle: Carbon Fiber
Blade Length: 75mm
Blade Thickness: 2.5mm
Closed Length: 100mm
Total Length: 175mm
Closed Thickness: 17mm
Weight: 70g
Lock Mechanism: Ball Joint
Clip: Stainless steel
Sheath: -
Packaging: Cardboard box with Spyderco logos
Notes: Design by Bob Terzuola

The Bob Terzuola Slipit C131 features a modified Wharncliffe blade with a razor-sharp edge, perfect for precise cuts. The carbon fiber handle provides a secure grip and refined aesthetics. The Ball Joint mechanism ensures secure closure without the use of a traditional lock, making it compliant with regulations in many jurisdictions. The reversible pocket clip allows discreet and convenient carrying. This knife represents a perfect fusion of traditional craftsmanship and modern innovation.

I designed the ATCF in 1986-87 inspired by my experience with military and security personnel in Central America and the United States. 

The ATCF was the first tactical knife to be fully assembled with screws instead of pins and rivets.
I invented the thumb disk to facilitate opening with both hands. This became a widely copied feature of the ATCF and is used on many other knives by manufacturers around the world.

The ATCF was the first pocket knife to use a checkering on the top which, along with the guard, provides protection and a firm grip. 

The ATCF is one of the most copied knife shapes in the knife world, and as I often like to proudly say, "The ATCF is the shape...that shaped the whole industry!"

Bob Terzuola 

Intended Use: Tactical/Sporting

Type of production: Industrial
Country of Production:Italy
Blade:made of CPM-MagnaCut 59/61HRC steel
Blade finish: satin finish
Handle: black micarta with anodized titanium hardware
Blade length: 90mm.
Blade thickness: 4mm.
Length closed: 126m.
Total length: 220mm.
Thickness when closed: 12mm
Weight: 130g.
Closure: Liner lock
Clip: removable, anodized titanium
Packaging: Cardboard box with Fox Knives logos, nylon pouch with "Terzuola" velcro patch
Notes: Design by Bob Terzuola

KNIFE WITHDRAWN FROM PRIVATE COLLECTION
* Type: Early 2000s knife, previously purchased.
* Condition: Overall in good condition.
* Commercially available Discontinued
* Sharpening: Factory.
* Marks on blade: Small abrasions given by being placed in Kydex sheath.
* Marks on handle: None
* Box: -
* Scabbard: Present
* Manuals, Certificates and Warranties: - -
* Checked and Certified by our in-house laboratory

Intended Use: Tactical

Production type: MidTech
Country of Production: USA
Blade: full tang stainless steel CPM-S30V
Finish: Tiger Stripe
Handle: Paracord
Blade length: 100mm.
Blade thickness: 4.5mm.
Total length: 195mm.
Weight: 125g.
Sheath: thermoformed kydex, with Tek-Lok multi-position attachment
Notes: previously purchased knife, from private collection

KNIFE WITHDRAWN FROM PRIVATE COLLECTION
* Type: Previously Purchased
* Condition: Overall in very good condition.
* Commercially available Discontinued; Company no longer in operation as of 2017.
* Sharpening: Factory.
* Marks on blade: Normal marks, found on all Strider models with Tiger Stripe finish.
* Marks on handle: None
* Box: Originally sold unboxed
* Scabbard: Original, in Khaki-colored Cordura, by Eagle USA.
* Manuals, Certificates and Warranties:Originally sold without certificates or warranties.
* Checked and Certified by our in-house laboratory



Intended Use: Tactical / Collection

Type of manufacture:Midtech
Country of Production: USA
Blade: Stainless steel CPM-S30V
Blade Finish: Tiger Stripe
Handle: Black G-10 with GG (Gunner Grip) pattern
Blade length: 160mm.
Blade thickness: 6.3mm.
Total length: 298mm.
Weight: 353g.
Sheath: Khaki, cordura, by Eagle USA
Packaging: -
Notes: 2010 specimen in very good condition - Shows small scuff marks on the Tiger Stripe finish, which is common with any Strider model made with this matte blade finish - Strider knives have always been offered by the company without any box, packaging, manual or certificate - This historic company ceased operations in 2017, after a 25-year career - Mick Strider, the company's previous founding partner, is still in business and dedicated solely to making custom knives.

Intended Use: Sporting/EDC

Production type: Industrial
Country of Production: Maniago - Italy
Blade: Stainless steel M390 60/61HRC
Blade treatment: stonewashed
Handle: Titanium grips, titanium spacers and screws
Blade length: 86mm.
Blade thickness: 4mm.
Weight: 134g.
Length when closed: 115mm.
Total length: 197mm.
Locking mechanism: Framelock
Clip: titanium, removable, deep pocket type.
Scabbard: Synthetic material pouch with zipper closure and belt loop
Package: Cardboard box with MKM Maniago Knife Makers logos 
Notes: Tungsten carbide rear glass breaker - Design by Bob Terzuola

Knife acquired from a private collection - Overall in very good condition, with factory sharpening - Rare version, one of the first, with flat G10 handle - Hardened by Paul Bos, with logo present on the right heel of the blade - It has some small signs of abrasion on the tigerstripe finish, common to all Strider knives - Checked and certified by our internal laboratory.

Intended Use: Tactical

Manufacturing Type: Mid Tech (semi-craft)
Country of Production: USA
Blade: Stainless steel CPM-S30V hardened by Paul Bos
Blade Treatment: Tiger Stripe
Handle: G10 flat with 2mm titanium liners
Blade length: 103mm.
Blade thickness: 5mm.
Length closed: 137mm.
Total length: 240mm.
Thickness closed: 18mm.
Weight: 228g.
Closure: Liner Lock
Clip: Titanium 
Package: Nylon pouch with zipper 
Notes: Rare version, one of the first, with G10 flat grip - Hardened by Paul Bos, with logo on the right heel of the blade

Intended use: Sportsman / EDC

Type of production: Industrial
Country of production: Maniago - Italy
Blade: in N690 59 / 60HRC stainless steel
Blade treatment: black cerakote
Handle: black G10 grips
Blade length: 130mm.
Total length: 260mm.
Blade thickness: 5mm.
Weight: 230g.
Sheath: cordura sheath, MOLLE compatible
Packaging: Cardboard box with MKM Maniago Knife Makers logos
Notes: Design by Bob Terzuola - produced by Fox

Intended use: Sports / EDC

Type of production: Industrial
Country of production: Maniago - Italy
Blade: N690 59 / 60HRC stainless steel
Blade treatment: satin
Grip: black G10 grips
Blade length: 130mm.
Total length: 260mm.
Blade thickness: 5mm.
Weight: 230g.
Sheath: black Cordura sheath with strap
Packaging: cardboard box with MKM logos Maniago Knife Makers
Notes: Design by Bob Terzuola

Intended use: Sports / EDC

Type of production: Industrial
Country of production: Maniago - Italy
Blade: stainless steel M390 60 / 61HRC
Blade treatment: satin
Grip: black G10 grips
Blade length: 84mm.
Total length: 203mm.
Blade thickness: 4mm.
Weight: 130g.
Opening: Carson Flipper system rotation mechanism with ball bearings
Washers: in steel and bronze, with ball bearings
Closure: Liner Lock
Clip: titanium, removable
Sheath: synthetic case with zip and strap
Packaging: cardboard box with MKM logos Maniago Knife Makers
Notes: Knife manufactured by Viper

Folding knife made by Lion Steel with BÖHLER M390 MICROCLEAN satin steel blade, opening with removable pinball and two-handed opening nail, rotation mechanism with ball bearings. Stainless steel liner lock, spacer and solid anodized titanium blue clip, stainless steel screws with anodized blue titanium rotating pin. Available in eight versions that differ in the materials used for the handle: carbon fiber, black G10, olive wood, Santos wood. For each of these materials, versions with or without titanium plates are available.

Intended use: Sports / EDC

Type of production: Industrial
Country of production: Maniago - Italy
Blade: stainless steel M390 60 / 61HRC
Blade treatment: satin
Grip: olive wood grips
Blade length: 76mm.
Blade thickness: 3.5mm.
Weight: 115g.
Opening: Carson Flipper system rotation mechanism with ball bearings
Washers: in steel and bronze, with ball bearings
Closure: Liner Lock
Clip: titanium, removable
Sheath: synthetic case with zip and strap
Packaging: cardboard box with MKM logos Maniago Knife Makers
Notes: Design by Bob Terzuola - Knife manufactured by Lion Steel

Folding knife made by Lion Steel with BÖHLER M390 MICROCLEAN satin steel blade, opening with removable pinball and two-handed opening nail, rotation mechanism with ball bearings. Stainless steel liner lock, spacer and solid anodized titanium blue clip, stainless steel screws with anodized blue titanium rotating pin. Available in eight versions that differ in the materials used for the handle: carbon fiber, black G10, olive wood, Santos wood. For each of these materials, versions with or without titanium plates are available.

Intended use: Sports / EDC

Type of production: Industrial
Country of production: Maniago - Italy
Blade: stainless steel M390 60 / 61HRC
Blade treatment: satin
Handle: Santos wood grips and titanium plates
Blade length: 76mm.
Blade thickness: 3.5mm.
Weight: 130g.
Opening: Carson Flipper system rotation mechanism with ball bearings
Washers: in steel and bronze, with ball bearings
Closure: Liner Lock
Clip: titanium, removable
Sheath: synthetic case with zip and strap
Packaging: cardboard box with MKM logos Maniago Knife Makers
Notes: Design by Bob Terzuola - Knife manufactured by Lion Steel

Folding knife made by Lion Steel with BÖHLER M390 MICROCLEAN satin steel blade, opening with removable pinball and two-handed opening nail, rotation mechanism with ball bearings. Stainless steel liner lock, spacer and solid anodized titanium blue clip, stainless steel screws with anodized blue titanium rotating pin. Available in eight versions that differ in the materials used for the handle: carbon fiber, black G10, olive wood, Santos wood. For each of these materials, versions with or without titanium plates are available.

Intended use: Sports / EDC

Type of production: Industrial
Country of production: Maniago - Italy
Blade: stainless steel M390 60 / 61HRC
Blade treatment: satin
Grip: carbon fiber grips
Blade length: 76mm.
Blade thickness: 3.5mm.
Weight: 107g.
Opening: Carson Flipper system rotation mechanism with ball bearings
Washers: in steel and bronze, with ball bearings
Closure: Liner Lock
Clip: titanium, removable
Sheath: synthetic case with zip and strap
Packaging: cardboard box with MKM logos Maniago Knife Makers
Notes: Design by Bob Terzuola - Knife manufactured by Lion Steel

Intended use: Sports

Type of production: Industrial
Country of production: Italy
Blade: stainless steel N690Co
Surface treatment: Stonewashed
Handle: Titanium anodized
Blade length: 8.9mm.
Blade thickness: 3mm.
Closed Length: 112mm.
Overall length: 200mm.
Thick when closed: 14.5mm
Weight: 128g.
Closing: Frame Lock
Clip: Titanium anodized
Packaging: cardboard box with Fox Knives logos
Notes: Design by Bob Terzuola

Intended use: Sports

Type of production: Industrial
Country of production: Italy
Blade: stainless steel N690Co
Surface treatment: Stonewashed
Handle: Titanium anodized
Blade length: 8.9mm.
Blade thickness: 3mm.
Closed Length: 112mm.
Overall length: 200mm.
Thick when closed: 14.5mm
Weight: 128g.
Closing: Frame Lock
Clip: Titanium anodized
Packaging: cardboard box with Fox Knives logos
Notes: Design by Bob Terzuola

Intended use: Sports / Collection

Type of production: Industrial
Country of production: Italy
Blade: Stainless Damascus Super Dense Twist 364 layers (ATS34 + PMC27)
Surface treatment: -
Handle material: wood bocote
Blade length: 8.9mm.
Blade thickness: 3mm.
Closed Length: 112mm.
Overall length: 200mm.
Thick when closed: 14.5mm
Weight: 98g.
Lock: Liner Lock
Clip: -
Sheath: -
Packaging: cardboard box with Fox Knives logos
Notes: Design by Bob Terzuola

Intended use: Sports / collection

Type of production: Industrial
Country of production: Italy
Blade: N690 stainless steel
Handle material: wood ziricote
Blade length: 88mm.
Blade thickness: 3mm.
Closed Length: 110mm.
Overall length: 200mm.
Thick when closed: 14mm
Weight: 94g.
Lock: Liner Lock
Clip: -
Sheath: Leather
Packaging: Cardboard box with logos Fox Knives
Notes: Design by Bob Terzuola

Intended use: Sports / collection

Type of production: Industrial
Country of production: Italy
Blade: N690 stainless steel
Surface treatment: Teflon coating
Handle: G10
Blade length: 88mm.
Blade thickness: 3mm.
Closed Length: 110mm.
Overall length: 200mm.
Thick when closed: 14mm
Weight: 110g.
Lock: Liner Lock
Clip: Removable stainless steel
Packaging: Cardboard box with logos Fox Knives
Notes: Design by Bob Terzuola

Intended Use: Tactical

Type of production: Semi-Craft
Production Lama USA
Blade: Stainless steel CPM-S30V
Treatment Blade: Tiger Stripe
Handle: with G10 scales with titanium liners 2mm
Blade length: 103mm.
Blade thickness: 5mm.
Length closed: 137mm.
Total length: 240mm.
Thick when closed: 18mm.
Balance: -
Weight: 244g.
Lock: Liner Lock
Clip: Titanium
Sheath: -
Packaging: -
Notes: Hardened by Paul Bos, with logo on the right heel of the blade

Intended Use: Sport / Outdoor

Type of production: Industrial
Blade Production: Japan
Blade: Stainless steel VG-10
Treatment Blade: -
Handle: Black G-10
Blade length: 86mm.
Blade thickness: 3mm.
Closed Length: 106mm.
Overall length: 192mm.
Thick when closed: -
Balancing: -
Weight: 96g.
Lock: Liner Lock
Clip: Multiposition and removable stainless steel
Sheath: -
Packaging: Cardboard box with logos Spyderco
Notes: Design by Bob Terzuola

Intended use: Tactical / Collection

Type of production: Industrial
Production Lama USA
Blade: Stainless steel 154CM
Treatment Blade: Stone Washed
Handle: Aluminum 6061T6 Aircraft with non-slip inserts
Blade length: 80mm.
Blade thickness: 4mm.
Closed Length: 135mm.
Overall length: 230mm.
Thick when closed: -
Balancing: -
Weight: 204g.
Lock: Frame Lock
Clip: Removable, Stainless Steel
Sheath: -
Packaging: Cardboard box with logos Microtech
Design: by Mick Strider and Anthony Marfione

Intended use: Tactical / Collection

Type of production: Industrial
Production Lama USA
Blade: Stainless steel 154CM
Treatment Blade: Stone Washed
Handle: Aluminum 6061T6 Aircraft with non-slip inserts
Blade length: 80mm.
Blade thickness: 4mm.
Closed Length: 135mm.
Overall length: 230mm.
Thick when closed: -
Balancing: -
Weight: 204g.
Lock: Frame Lock
Clip: Removable, Stainless Steel
Sheath: -
Packaging: Cardboard box with logos Microtech
Design: by Mick Strider and Anthony Marfione

Destinazione d'uso: Tattico

Tipo di produzione: Semi-Artigianale
Produzione Lama: USA
Lama: CPM-3V Tool Steel
Trattamento Lama: Nitrurazione al titanio
Manicatura: G-10 con lavorazione 3D in colore Green + una coppia di guancette intercambiabili in G-10 in colore Black
Lunghezza lama: 80mm.
Spessore lama: 5mm.
Lunghezza chiuso: -
Lunghezza totale: 184mm.
Spessore da chiuso: -
Bilanciatura: -
Peso: 227g.
Chiusura: -
Clip: -
Fodero: in Kydex, dotato di sistema opzionale e multiposizione PUP (Pals Universal Platform)
Confezione: Busta Trasparente
Note: Edizione Esclusiva e Limitata, non presente nei normali listini e cataloghi Strider, con loghi Monkey Edge incisi

Microtech DOC Black - Death on Contact - Flipper Knife - Knife

Intended use: Tactical / Collection

Type of production: Industrial
Production Lama USA
Blade: Stainless steel 154CM
Treatment Blade: Black Coating
Handle: Aluminum 6061T6 Aeronautics and Carbon Fiber
Blade length: 80mm.
Blade thickness: 4mm.
Closed Length: 135mm.
Overall length: 230mm.
Thick when closed: -
Balancing: -
Weight: 204g.
Lock: Frame Lock
Clip: Stainless Steel
Sheath: Nylon
Packaging: Cardboard box with logos Microtech
Design: Mick Strider and Anthony Marfione

Intended Use: Tactical

Type of production: Semi-Craft
Production Lama USA
Blade: Stainless steel CPM-S30V
Treatment Blade: Tiger Stripe
Handle: with G10 scales with titanium liners 2mm
Blade length: 103mm.
Blade thickness: 5mm.
Length closed: 137mm.
Total length: 240mm.
Thick when closed: 18mm.
Balance: -
Weight: 244g.
Lock: Liner Lock
Clip: Titanium
Sheath: -
Packaging: -
Notes: Hardened by Paul Bos, with logo on the right heel of the blade

Spyderco - Starmate by Bob Terzuola - C55G - knife

Intended Use: Sports / Outdoors

Type of production: Industrial
Blade Production: Japan
Blade: stainless steel VG-10
Treatment Lama: -
Handle: G-10 Black
Blade length: 95mm.
Blade thickness: 4mm.
Closed Length: 126mm.
Total length: 221mm.
Thick when closed: -
Balance: -
Weight: 139g.
Lock: Liner Lock
Clip: Multiposition and removable, stainless steel
Sheath: -
Packaging: Cardboard box with logos Spyderco
Notes: Design by Bob Terzuola

Destinazione d'uso: Tattico / Collezione

Tipo di produzione: Semi-Artigianali
Produzione Lama: USA
Lama: In acciaio inox CPM-S30V
Trattamento Lama: Tiger Stripe
Manicatura: G-10 e Titanio
Lunghezza lama: 100mm.
Spessore lama: 5mm.
Lunghezza totale: 228mm.
Peso: 172g.
Chiusura: Frame Lock in titanio
Clip: in titanio
Fodero: -
Confezione: -
Note: -

Intended Use: Tactical

Type of production: Semi-Craft
Production Lama USA
Blade: Stainless steel CPM-S30V
Treatment Blade: Tiger Stripe
Handle material: G10 and titanium
Blade length: 88mm.
Blade thickness: 3.5mm.
Length closed: 115mm.
Total length: 203mm.
Thick when closed: 12mm.
Balance: -
Weight: 138g.
Closure: Frame Lock
Clip: Titanium
Sheath: -
Packaging: -
Notes: -