Knife - Essential Tool for Camping, Outdoor Adventure and collection

With thirty years of experience in designing professional knives, Extrema Ratio has developed a model designed for those seeking an everyday carry tool that combines functionality, lightness, and attention to detail.

The minimalist profile, clean lines, and light weight are not merely aesthetic choices for their own sake, but the result of a design focused on efficiency. Every element serves a specific purpose. Nothing has been added merely to impress; nothing is there without a reason.

AERO is built using materials selected to ensure reliability in daily use and minimal maintenance: an Anticorodal aluminum handle and a Nitrogen steel blade, prized for its corrosion resistance, edge retention, and ease of resharpening.

Intended Use: Sports / EDC

Production Type: Industrial
Country of Manufacture: Italy
Blade: Nitrogen steel
Blade Finish: MIL-C-13924 burnishing
Handle: Stainless steel scales with anodized anticorodal aluminum grip
Blade Length: 69mm.
Blade thickness: 2.3 mm.
Overall length: 173 mm.
Weight: 92 g.
Lock type: Liner Lock
Clip: -
Packaging: Cardboard box with Extrema Ratio logos
Notes: -

With thirty years of experience in designing professional knives, Extrema Ratio has developed a model designed for those seeking an everyday carry tool that combines functionality, lightness, and attention to detail.

The minimalist profile, clean lines, and light weight are not merely aesthetic choices for their own sake, but the result of a design focused on efficiency. Every element serves a specific purpose. Nothing has been added merely to impress; nothing is there without a reason.

AERO is built using materials selected to ensure reliability in daily use and minimal maintenance: an Anticorodal aluminum handle and a Nitrogen steel blade, prized for its corrosion resistance, edge retention, and ease of resharpening.

Intended Use: Sports / EDC

Production Type: Industrial
Country of Manufacture: Italy
Blade: Nitrogen steel
Blade Finish: MIL-C-13924 burnishing
Handle: Stainless steel scales with anodized anticorodal aluminum grip
Blade Length: 69mm.
Blade thickness: 2.3 mm.
Overall length: 173 mm.
Weight: 92 g.
Lock type: Liner Lock
Clip: -
Packaging: Cardboard box with Extrema Ratio logos
Notes: -

With thirty years of experience in designing professional knives, Extrema Ratio has developed a model designed for those seeking an everyday carry tool that combines functionality, lightness, and attention to detail.

The minimalist profile, clean lines, and light weight are not merely aesthetic choices for their own sake, but the result of a design focused on efficiency. Every element serves a specific purpose. Nothing has been added merely to impress; nothing is there without a reason.

AERO is built using materials selected to ensure reliability in daily use and minimal maintenance: an Anticorodal aluminum handle and a Nitrogen steel blade, prized for its corrosion resistance, edge retention, and ease of resharpening.

Intended Use: Sports / EDC

Production Type: Industrial
Country of Manufacture: Italy
Blade: Nitrogen steel
Blade Finish: MIL-C-13924 burnishing
Handle: Stainless steel scales with anodized anticorodal aluminum grip
Blade Length: 69mm.
Blade thickness: 2.3 mm.
Overall length: 173 mm.
Weight: 92 g.
Lock type: Liner Lock
Clip: -
Packaging: Cardboard box with Extrema Ratio logos
Notes: -

With thirty years of experience in designing professional knives, Extrema Ratio has developed a model designed for those seeking an everyday carry tool that combines functionality, lightness, and attention to detail.

The minimalist profile, clean lines, and light weight are not merely aesthetic choices for their own sake, but the result of a design focused on efficiency. Every element serves a specific purpose. Nothing has been added merely to impress; nothing is there without a reason.

AERO is built using materials selected to ensure reliability in daily use and minimal maintenance: an Anticorodal aluminum handle and a Nitrogen steel blade, prized for its corrosion resistance, edge retention, and ease of resharpening.

Intended Use: Sports / EDC

Production Type: Industrial
Country of Manufacture: Italy
Blade: Nitrogen steel
Blade Finish: MIL-C-13924 burnishing
Handle: Stainless steel scales with anodized anticorodal aluminum grip
Blade Length: 69mm.
Blade thickness: 2.3 mm.
Overall length: 173 mm.
Weight: 92 g.
Lock type: Liner Lock
Clip: -
Packaging: Cardboard box with Extrema Ratio logos
Notes: -

Now better suited than ever for EDC, the 537BK-06 Bailout® becomes part of your daily rotation without sacrificing strength and durability. 

Maintaining its heavy-duty tactical capabilities with such a piercing blade, this slim, easily stowable folding knife features ultralight Grivory® handles with highly textured grip areas in our popular ranger green color, CPM-S30V steel blade with graphite black Cerakote® finish for excellent sharpening qualities and corrosion resistance, black oxide screws, and an aluminum pommel for the lanyard, free of rottan glass for customizable carry options.

Intended Use: Tactical / EDC

Type of production: Industrial
Country of manufacture: USA
Blade: stainless steel CPM-S30V
Blade finish: Cerakote
Handle: Grivory
Blade length: 86mm.
Blade thickness: 2.3mm.
Length closed: 119mm.
Total length: 206mm.
Thickness when closed: 10.4mm.
Weight: 58.2g.
Locking system: AxisLock
Clip: Removable and reversible, stainless steel
Packaging: Cardboard box with Benchmade logos
Notes: -

The Tuscan S600 Black by Extrema Ratio is a high-end tactical knife designed to deliver outstanding performance in complex operational scenarios. Crafted from Böhler S600 steel, cryogenically tempered to 64 HRC, it provides unparalleled hardness and wear resistance, ensuring a sharp cutting edge for longer. The EXP DARK finish protects the blade from oxidation, making it more durable even in extreme environmental conditions.

The lightweight full tang construction optimizes the knife’s balance, shifting the weight toward the tip to maximize efficiency in chopping and batoning operations. The handle, made of G10 with ergonomic scales, ensures a firm and comfortable grip, both with gloves and bare hands. The green Cordura sheath, M.O.L.L.E compatible, guarantees versatile and secure transport.

Designed for tactical and military use, the Tuscan S600 Black is the ideal companion for professional operators and survival and bushcraft enthusiasts looking for a reliable, durable, and high-performance knife.

Intended use: Tactical / Military
Production type: Industrial
Country of manufacture: Italy
Blade: Full tang, Böhler S600 steel (64 HRC)
Blade finish: EXP DARK (MIL-C-13924 coating)
Handle: G10, ergonomic with Extrema Ratio design
Blade length: 167mm
Blade thickness: 6mm
Overall length: 306mm
Weight: 449g
Locking mechanism: -
Clip: -
Sheath: Cordura, MOLLE compatible, with thigh strap
Packaging: Cardboard box with Extrema Ratio logos
Additional notes: Tang can be used as a glass breaker

If you're looking for a reliable companion for your outdoor adventures, the ONTOS II fixed blade knife is the choice for you. Perfect for those who enjoy camping, hiking, and hiking, this knife is designed to offer the perfect balance of light weight, durability, and exceptional performance. Its name, inspired by the Greek word “ontos,” meaning “the essence,” embodies the perfect blend of strength and versatility. With a forprene handle designed to provide a secure and comfortable grip, ONTOS II allows you to work with precision even in the most difficult conditions, offering total control even when the weather is inclement.

The full flat blade is designed for a precise, deep cut, ensuring high performance and durability. Its well-balanced construction allows you to tackle any task, whether it's cutting wood, thin branches, paracord or ropes. ONTOS II will never let you down, offering reliability and consistent performance in any situation.

The ONTOS II S600 Black is the ideal choice for those seeking exceptional performance and unparalleled wear resistance. With its vibrant green-colored handle, it stands out not only for its aesthetics, but also for the quality of the materials used. Made of Böhler S600 steel, a top-grade material used in the production of metalworking tools, this tool is cryogenically treated to ensure an extraordinary hardness of 64 HRC. The Teflon-based “EXP DARK” coating, developed by Extrema Ratio, further enhances its durability and performance. Complemented by a green thigh scabbard with M.O.L.L.E. system, the ONTOS II S600 Black is ready to be easily integrated into your gear, ensuring practicality and durability in any situation.

Intended Use: Heavy Utility / Hiking
Production type: Industrial
Country of manufacture: Italy
Blade: S600 steel at 64HRC
Surface treatment: Exp Dark
Handle: Forprene
Blade length: 167mm.
Blade thickness: 6mm.
Total length: 299mm.
Balance: advanced
Weight: 344g.
Sheath: nylon, MOLLE compatible
Packaging: cardboard box with Extrema Ratio logos
Notes: blade made of high carbon steel, always keep well cleaned and oiled during storage to prevent rust and oxidation

If you're looking for a reliable companion for your outdoor adventures, the ONTOS II fixed blade knife is the choice for you. Perfect for those who enjoy camping, hiking, and trekking, this knife is designed to offer the perfect balance of light weight, durability, and exceptional performance. Its name, inspired by the Greek word “ontos,” meaning “the essence,” embodies the perfect blend of strength and versatility. With a forprene handle designed to provide a secure and comfortable grip, ONTOS II allows you to work with precision in even the most difficult conditions, offering total control even when the weather is inclement.

The full flat blade is designed for a precise, deep cut, ensuring high performance and durability. Its well-balanced construction allows you to tackle any task, whether it's cutting wood, thin branches, paracord or ropes. ONTOS II will never let you down, offering reliability and consistent performance in any situation.

The ONTOS II Expeditions version is designed for those who demand the ultimate in performance and reliability. The knife features a desert-colored handle and is made of Böhler N690 steel, treated to 58 HRC with a stone-washed finish and MIL-C-13924 burnishing to ensure optimal strength, long edge life and protection against oxidation. It comes with a desert Cordura scabbard with MOLLE system, which includes a mini pouch with a flammable paracord lanyard for emergencies and a Firesteel for lighting fires, so you're always ready even in the most critical situations.

With ONTOS II, every adventure will be supported by a knife that combines superior performance, functionality and durability, making you feel ready to face any challenge.

Intended Use: Heavy Utility / Hiking
Production Type: Industrial
Country of manufacture: Italy
Blade: N690Co 58HRC stainless steel
Surface Treatment: Burnishing MIL-C-13924 Stone Washed
Handle: Forprene
Blade Length: 167mm.
Blade thickness: 6mm.
Total length: 299mm.
Balance: advanced
Weight: 311g.
Sheath: nylon, MOLLE compatible, with detachable front sheath
Packaging: cardboard box with Extrema Ratio logos.
Notes: includes a firesteel (tinder) and a firecord (flammable paracord thread) for lighting emergency fires

Super strong, super shiny, super light! By the will of the Nordic gods, Dirk Hofmeister of Midgards Messer has created a powerful masterpiece of great lightness and thrilling performance: the Boker Plus Superlight Tanto.

Made entirely of high-strength steel, this fixed-blade knife brings pure excitement with every cut. The solid tanto blade, crafted from D2 steel with a legendary stonewashed finish, effortlessly balances precision and cutting ability across the broad spectrum from EDC to outdoor use. 

The asymmetrical openings in the skeletonized handle reduce weight, enhance appearance and tactile feel, while the typical blade thickness and anti-slip inserts at critical points provide an exceptional grip and a high level of work safety.

Equipped with a hole for lanyard attachment, a perfectly fitting Kydex sheath, and a belt clip.

Intended Use: Utility

Production Type: Industrial
Country of Manufacture: China
Blade: full tang in D2 steel
Blade Finish: Stonewashed
Handle: -
Blade Length: 73mm.
Blade Thickness: 5.7mm.
Total Length: 169mm.
Weight: 99g.
Sheath: Kydex, with multi-position clip attachment
Packaging: cardboard box with Boker Plus logos
Notes: Design by Midgards Messer

Tuscan is a multi-role knife dedicated to Tuscany, a region known for its landscapes, cities of art and strategic military relevance. This knife is designed to adapt to different operational contexts, from tactical military theaters to urban operations, due to its versatility and maneuverability. The full tang blade made of BOHLER N690 steel (58 HRC) is lightened and balanced to facilitate chopping and batoning operations, while the sharpness remains uniform along the entire length. The ergonomic G10 handle allows comfortable use with both standard and reverse grip, with or without gloves. Ambidextrous Cordura sheath with M.O.L.L.E system and thigh strap allows easy carrying on tactical vests and belts. Tuscan is ideal for use in outdoor, survival and bushcraft environments, confirming its versatility in multiple operational situations.

Intended Use: Tactical/Military

Production type: Industrial
Country of production: Italy
Blade: full tang, in Bohler N690Co stainless steel at 58HRC
Blade treatment: Burnishing MIL-C-13924
Handle: G10
Blade length: 167mm.
Blade thickness: 6mm.
Total length: 306mm.
Weight: 437.5g.
Sheath: cordura, belt-mounted, MOLLE compatible
Packaging: cardboard box with Extrema Ratio logos.

Tuscan is a multi-role knife dedicated to Tuscany, a region known for its landscapes, cities of art and strategic military relevance. This knife is designed to adapt to different operational contexts, from tactical military theaters to urban operations, due to its versatility and maneuverability. The full tang blade made of BOHLER N690 steel (58 HRC) is lightened and balanced to facilitate chopping and batoning operations, while the sharpness remains uniform along the entire length. The ergonomic G10 handle allows comfortable use with both standard and reverse grip, with or without gloves. Ambidextrous Cordura sheath with M.O.L.L.E system and thigh strap allows easy carrying on tactical vests and belts. Tuscan is ideal for use in outdoor, survival and bushcraft environments, confirming its versatility in multiple operational situations.

Intended Use: Tactical/Military

Production type: Industrial
Country of production: Italy
Blade: full tang, in Bohler N690Co stainless steel at 58HRC
Blade treatment: Satin finish
Handle: G10
Blade length: 167mm.
Blade thickness: 6mm.
Total length: 306mm.
Weight: 437.5g.
Sheath: cordura, belt-mounted, MOLLE compatible
Packaging: cardboard box with Extrema Ratio logos.

A perfect combination in the EDC paradise. The Bailout® holds a special place in the hearts of those who appreciate tactical toughness in their everyday carry, and now we're pairing this sleek and ultralight folding knife with the ultimate super-material: titanium.

The all-new limited edition 537BK-2302 Bailout® features the much-loved CPM-M4 tanto blade, now in cobalt black Cerakote, but the star of this show is its handle made of bead-blasted 6Al-4V titanium manufactured in the USA.

Accentuated with PVD-coated blue hardware, including a Crater Blue lanyard pommel, this edition is limited to 1000 pieces.

Intended Use: Tactical / EDC

Production Type: Industrial
Country of Origin: USA
Blade: CPM-M4 steel (62-64 HRC)
Blade Finish: Cobalt Black Cerakote
Handle: 6AI-4V Titanium
Blade Length: 86mm.
Blade Thickness: 2.3mm.
Closed Length: 119mm.
Overall Length: 205mm.
Closed Thickness: 9.7mm
Weight: 103g.
Locking Mechanism: AxisLock
Clip: Removable and reversible, stainless steel
Packaging: Cardboard box with Benchmade logos
Notes: Limited edition of 1000 pieces

Intended Use: Utility / Hiking

Production type: Industrial
Country of Production: Italy
Blade: Full tang, tool steel D2
Blade Finish: Stonewashed
Handle: G-10
Blade length: 140mm.
Blade thickness: 6mm.
Total length: 290mm.
Balance: slightly advanced
Weight: 412g.
Sheath: nylon, with thigh and belt attachments
Package: Cardboard box with Maserin logos - diamond sharpener - wire saw for wood
Note: Design by Davide Bomben, president of the Associazione Italiana Esperti d'Africa (Italian Association of African Experts) and chief instructor of the Poaching Prevention Academy, an organization that in Namibia and other African countries trains rangers against poachers. He is the director of training for the African Field Guides Association and for over ten years has worked with the tour operator Il Diamante and with Wilderness Safaris as a guide and ranger. He has published guides to Namibia, South Africa and Botswana and three books on African mammals and birds. He is the promoter and referent of numerous projects for the protection of African wildlife such as rhinos, lions, elephants and gorillas.

Intended Use: Utility / Hiking

Production type: Industrial
Country of Production: Italy
Blade: Full tang, tool steel D2
Blade Finish: Stonewashed
Handle: G-10
Blade length: 140mm.
Blade thickness: 6mm.
Total length: 290mm.
Balance: slightly advanced
Weight: 412g.
Sheath: nylon, with thigh and belt attachments
Package: Cardboard box with Maserin logos - diamond sharpener - wire saw for wood
Note: Design by Davide Bomben, president of the Associazione Italiana Esperti d'Africa (Italian Association of African Experts) and chief instructor of the Poaching Prevention Academy, an organization that in Namibia and other African countries trains rangers against poachers. He is the director of training for the African Field Guides Association and for over ten years has worked with the tour operator Il Diamante and with Wilderness Safaris as a guide and ranger. He has published guides to Namibia, South Africa and Botswana and three books on African mammals and birds. He is the promoter and referent of numerous projects for the protection of African wildlife such as rhinos, lions, elephants and gorillas.

Destinazione d'uso: Utility

Tipo di produzione: Industriale
Paese di produzione: Cina
Lama: ful tang in acciaio D2
Finitura lama: Black PVD
Manicatura: G10
Lunghezza lama: 80mm.
Spessore lama: 5.7mm.
Lunghezza totale: 166mm.
Peso: 157g.
Fodero: in Kydex, con aggancio multiposizione
Confezione: scatola di cartone con loghi Boker Plus
Note: -

Intended Use: Sporty / Gentleman / EDC

Production type: Industrial
Country of Production: Maniago - Italy
Blade: Stainless steel M390 60/61HRC
Blade treatment: Satin
Handle: Aluminium
Blade length: 76mm.
Blade thickness: 2.5mm.
Length closed: 102mm.
Total lenght: 174mm.
Thickness when closed: 12mm.
Weight: 53g.
Opening: two hands
Washers: Brass
Closure: Slip Joint
Clip: -
Scabbard: leather, with belt loop with magnetic release
Package: Cardboard box with logos MKM Maniago Knife Makers
Notes: Design by Bruno Bruna Graciut, Master CIC (Italian Knife Makers Guild)

Intended Use: Sporty / Gentleman / EDC

Production type: Industrial
Country of Production: Maniago - Italy
Blade: Stainless steel M390 60/61HRC
Blade treatment: Satin
Handle: Aluminium
Blade length: 76mm.
Blade thickness: 2.5mm.
Length closed: 102mm.
Total lenght: 174mm.
Thickness when closed: 12mm.
Weight: 53g.
Opening: two hands
Washers: Brass
Closure: Slip Joint
Clip: -
Scabbard: leather, with belt loop with magnetic release
Package: Cardboard box with logos MKM Maniago Knife Makers
Notes: Design by Bruno Bruna Graciut, Master CIC (Italian Knife Makers Guild)

Intended Use: Sporting / EDC

Production Type: Industrial
Country of Production: Taiwan
Blade: Stainless steel 4034SS
Blade Treatment: Stonewashed
Handle: Griv-Ex
Blade length: 47mm.
Blade thickness: 2.4mm.
Length closed: 67mm.
Total length: 110mm.
Weight: 30g.
Closure: Tri-Ad Lock
Clip: -
Package: Cardboard box with Cold Steel logos
Notes: supplied with key ring

Intended use: Tactical / Sports

Type of production: Industrial
Country of production: China
Blade: 8Cr13Mov 58/60 HRC stainless steel
Blade treatment: Black Oxide
Handle: 2CR13 stainless steel
Blade length: 75mm.
Length closed: 102mm.
Total length: 180mm.
Weight: 82g.
Closure: Frame Lock
Clip: stainless steel, removable and reversible
Packaging: cardboard box with CRKT logos
Notes: Design by Kit Carson

Intended use: Sports / Tactical

Type of production: Industrial
Country of production: Italy
Blade: stainless steel 1.4116
Blade treatment: Sandblasted
Handle: Nylon
Blade length: 25mm.
Blade thickness: 2.5mm.
Length closed: 61mm.
Total length: 8mm.
Thick when closed: 11mm.
Weight: 30g.
Opening: manual, two-handed or extraction from the pocket using a wave-like system
Closure: Liner Lock
Clip: stainless steel, removable
Packaging: cardboard box with Fox logos and embroidered fabric key ring

Intended use: Sports / Tactical

Type of production: Industrial
Country of production: Italy
Blade: stainless steel 1.4116
Blade treatment: Sandblasted
Handle: Nylon
Blade length: 25mm.
Blade thickness: 2.5mm.
Length closed: 61mm.
Total length: 8mm.
Thick when closed: 11mm.
Weight: 30g.
Opening: manual, two-handed or extraction from the pocket using a wave-like system
Closure: Liner Lock
Clip: stainless steel, removable
Packaging: cardboard box with Fox logos and embroidered fabric key ring

Intended use: Sports / Tactical

Type of production: Industrial
Country of production: Italy
Blade: stainless steel 1.4116
Blade treatment: Sandblasted
Handle: Nylon
Blade length: 25mm.
Blade thickness: 2.5mm.
Length closed: 61mm.
Total length: 8mm.
Thick when closed: 11mm.
Weight: 30g.
Opening: manual, two-handed or extraction from the pocket using a wave-like system
Closure: Liner Lock
Clip: stainless steel, removable
Packaging: cardboard box with Fox logos and embroidered fabric key ring

Intended use: Tactical / Military

Type of production: Industrial
Country of production: Italy
Blade: stainless steel N690Co 58 / 60HRC
Blade treatment: Black Idroglider
Handle: Forprene
Blade length: 170mm.
Blade thickness: 6mm.
Total length: 300mm.
Weight: 295g.
Sheath: cordura, with leg strap
Packaging: cardboard box with Fox logos
Note: -

Intended use: Sports / EDC
Type of production: Industrial
Blade: 8Cr13MoV stainless steel
Blade treatment: Teflon coating
Production Lama: China
Handle: FRN Tan
Blade length: 60mm.
Blade Thickness: 2.5mm.
Closed Length: 90mm.
Overall length: 160mm.
Balancing: -
Weight: 86g.
Lock: Liner Lock
Clip: removable stainless steel teflon
Sheath: -
Notes: used as a bottle opener, and flat screwdriver