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Medium Bushcraft - O1 Tool Steel with Firesteel
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Medium Bushcraft – O1 Tool Steel with Firesteel

Original price was: $530.00.Current price is: $490.00. incl GST & Free Shipping

Blade: CPM-Magnacut premium hand ground stainless steel 115mm (4.4 inch) long, 4.3mm thick, 36mm deep, Scandi Grind

Scales: Gidgee, Black G10 liners and brass pins.

Sheath: Hermann Oak Leather

Firesteel: Custom Gidgee, Compass (Taiwan), and 12.5mm x 150mm Firesteel

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Description

Medium Bushcraft – O1 Tool Steel with Firesteel

This knife was inspired by a couple of knives and is probably about the perfect size for an all round bushcraft knife.  First inspiration came from the Architect Field Buddy 5.5 which was developed by the KnifeConnection in USA.  It was also inspired by the Bark River Mini Aurora.  I like the Field Buddy a lot but there are some things that I wanted to improve upon.  The Field Buddy has a near full height grind and is traditionally manufactured from 1095 Carbon Steel.  Whilst 1095 is a good steel, it lacks toughness, corrosion resistance and edge retention.  The handle scales on the Field Buddy are removable and are a bit on the thin side.  The Bark River Mini Aurora is a great shaped knife but the handle is too small.  My version…the Medium Bushcraft is a stout general purpose bushcrafting knife that also doubles as a handy hunting and camp knife.  It has enough belly to skin.  It is a tough Knife as it is made with O1 Tool Steel.

The blade is approximately 4.3mm thick and is 4.4 inches (115mm) long.  It has been heat treated to 61.2 Rockwell by Ausmaker Supplies in Sydney.   The spine has been ground to a sharp 90 degrees so it will strike a fero rod with ease to produce a shower of sparks.  As this knife is made with O1 Tool Steel, it will corrode if you leave it out in the elements.  Having said that, if you look after it, O1 is a great steel for Bushcraft knives.

What Is O1 Tool Steel?

O1 tool steel is a premium, oil-hardening alloy known for its ability to keep its shape even when subjected to high temperatures.  The “O1” actually isn’t a reference to the steel’s popularity, but rather to its carbon content: around 1%. The O, meanwhile (not a zero!), refers to its oil hardening quality. Being a high carbon steel makes O1 hard and strong, but also more brittle and prone to cracking without proper heat treatment.

Important Properties

O1 steel offers versatility based on several strengths:

  • Wear and abrasion resistance – Well-suited for cutting tools that need to maintain a sharp edge
  • Toughness – Withstands impacts and stresses without cracking or breaking
  • Machinability – Easy to machine and grind
  • Corrosion resistance – Somewhat protective, although not as corrosion-resistant as fully stainless steels (such as 416 stainless steel, for example)

Composition

O1 tool steel is an alloy steel designed for high performance in various applications. It usually includes the following elements:

Element Purpose Content
Carbon Hardness and strength 0.85-1%
Manganese Hardness and wear resistance 1-1.4%
Chromium Wear and corrosion resistance 0.4-0.6%
Tungsten Wear resistance and toughness 0.4-0.6%
Silicon Deoxidization 0.3-0.5%
Vanadium Wear resistance and toughness 0.15-0.3%

 

The overall length of the knife is 8.6″.  The blade has a scandi grind.  The scales are Gidgee with Black G10 Liners with brass pins.  The sheath is made from Hermann Oak Leather and has a firesteel loop.

The firesteel is made using Gidgee from the same larger bit of timber that I cut the handles scales from.  I cut the timber from a fallen tree near Charleville in South West Queensland.  The firesteel is 12.5mm in diameter and 7 inches long (overall).  I’ve also installed a quality “Made in Taiwan” Helikon-Tex compass in the rear.

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