In our last blog we looked at 12 essential items that you should have with you when venturing outdoors, the first five being the most important as they are the most difficult and time consuming to re-produce in nature. These were a cutting tool, combustion device, covering/shelter, metal container and cordage.
In this blog we will be focussing on the first of those items which is a cutting tool (knife) and why it is the most important tool of all to have with you.
Why is a cutting tool so important?
Everything that we own, travel in, live in or use in our daily lives is made using some kind of cutting tool. From the clothes we wear to the houses we live in, a cutting tool of some description is used in their manufacture.
In its simplest form, when out in the bush and away from man made habitation this comes down to a simple knife, saw or axe.
In the bush, with just a knife, everything else you need can be constructed using knowledge and skill.
The origins of knife crafting
For 80% of mans existence, cutting tools were crafted using flint and stone technology. Early man and indigenous cultures across the world have made cutting tools, scrapers, saws, arrow heads and tools to hunt with or make or shape the things that they needed for their daily lives.
The practise of flint knapping as it is known today, is the shaping of flint, chert, obsidian, quartz or other conchoidal fracturing stone through the process of lithic reduction to manufacture stone tools, knives, arrow heads or strikers for flintlock firearms.
Knapping was a very important and precise skill set needed to make these tools, gleaned from thousands of years of trial and error. Without the resources or the knowledge of how to make cutting tools, life would have been very difficult if not impossible in some places.
From the Bronze Age to the Iron Age and right up to to the manufacture of steel, the art of cutting tool creation has been refined to create superior, sharper and more durable cutting tools than their early flint counterparts. So unless you have a knowledge of flint knapping and can access flint or chert deposits, which are quite scarce, then you had better make sure you have a good knife.
Choosing a knife
There are literally thousands of knives in the marketplace to choose from so how do you know which one to pick? Probably the most important thing you need to ask yourself is what do you need the knife for!
Some knives are specially designed for wood carving, some for cutting rope, some for skinning, some for chopping, while others are used in surgery or in the kitchen and some are just general purpose knives.
Knife Grinds & Bevels
There are 4-5 primary knife grinds, each consisting of either a primary or secondary bevel, or both; conventional grind, flat grind, hollow grind (concave), convex grind and Scandi grind (tapered).
Conventional grind knives account for probably 50% of most factory made knives, multi tools and pocket knives. They are a compromise between blade strength and sharpness. Due to the very narrow secondary bevel on these knives it makes it hard to maintain a consistent angle when sharpening unless using an angled sharpening tool.
Hollow grind (concave) knives are very sharp as they have a thinner blade profile so they are great for skinning and are the profile used for surgical knives. This thinner profile however makes the blade weaker and prone to snap when used for general cutting or battoning.
Convex grind profiles are used for robust tools that are designed to chop and split wood such as axes and some machetes.
Scandi grind (tapered) knives are used in bushcraft, woodcraft and wilderness activities as they are a good compromise of strength, sharpness and edge retention. They have a good all round design that can be used for general cutting, skinning, carving and battoning. They also have a large flat primary bevel with no secondary bevel which makes them easy to re-sharpen and maintain a consistent blade angle.
Carbon vs Stainless steel
Stainless steel is not prone to rust and retains its edge for longer yet is harder to re-sharpen (great for marine and wet environments).
Carbon steel is easier to re-sharpen in the field yet looses its edge faster and is prone to rust if not looked after properly. It can also be used to create sparks when struck with flint or chert for flint and steel fire making.
Serrations and saws on knives
Serrated blades are primarily for cutting rope and strapping but are not much good for anything else, they are also very difficult to re-sharpen in a field environment, so unless you plan on doing a lot of rope cutting, steer away from a knife that has serrations anywhere on the knife as this prevents the knife being used for other more useful tasks. You are better to carry a separate multi tool such as a Leatherman that has a purpose built serrated blade.
The same holds true for saws on the back of fixed blade knives, as these generally only ever cut down to the depth of the teeth then get stuck because the sides of the knife are the same width as the teeth, rather than the teeth being splayed wider than the width of the knife, creating a gap and thereby reducing friction and allowing the saw to cut without getting stuck.
Saws on the back of fixed blade knives also inhibit the back of the knife being able to be utilised for other tasks such as stripping bark or used in conjunction with a Ferrocerium rod/Fire steel for fire lighting (a 90 degree edge on the back of the knife is needed for this).
It is far better to carry a separate purpose built pocket folding saw such as a Bacho Laplander folding saw. Victorinox pocket knives and Leatherman multitools also have saws in them that cut well and are great for small notching tasks.
What NOT to choose
Probably the best example of what you “don’t” want in an outdoor knife are the classic “Rambo” type knives with survival kits and a compass in the handle, saws and serrations on the blade or the spine. These knives are gimmicks and designed to “look good” rather than have any real functional use.
A knife with a survival kit in the handle won’t even be half tang so is prone to breakage, also if you loose your knife then you have lost your survival kit as well, not that you could fit anything of real use in something so small in the first place! Serrations and saws as mentioned above will inhibit using the knife for other more vital tasks.
Double edged knives are designed as fighting knives and have no use as a general outdoor bush knife. So unless you are in a military unit that does a lot of close quarter fighting and you can’t use your primary weapon, then stay clear of these types of knives. They are also illegal in Australia.
The ideal cutting tool
As stated earlier, your choice of cutting tool is primarily determined by where you are and what you need it for. In the Boreal forests of the northern hemisphere this might be a forest axe, capable of felling trees, splitting and chopping wood to build shelters or process fire wood to keep a long log fire going to keep you warm.
In a tropical environment this could be a machete or a parang, capable of slashing vines and undergrowth, splitting bamboo or processing coconuts.
For bushcraft and general outdoor use in a temperate environment, a folding saw and a full tang belt knife with a 5 to 5.5 inch, 3.2 mm thick, Scandi grind, carbon steel blade with a sharp 90 degree spine is ideal. This would afford you with a strong robust knife capable of a variety of tasks such as cutting, carving, skinning, stripping and battoning.
The Swedish knife company Morakniv make a good selection of very affordable high quality Scandi grind knives perfectly suited for bushcraft and other outdoor activities. Many of the leading bushcraft and survival schools around the world as well as many military units use Morakniv knives.
Some of the commonly used models for bushcraft, survival and outdoor use are as follows:
Companion Heavy Duty MG: This is the general entry knife used and issued at many bushcraft and survival schools around the world. It is strong and robust and capable of performing a variety of outdoor tasks. It has a ¾ tab tang Scandi grind blade but does not have a 90 degree spine for fire steel use, this can be easily done with a file though. The new Companion Spark (slightly thinner blade) however comes with a 90 degree spine and small Ferro Rod. The Companion HD MG retails for about $40 AUD making it one of the most affordable and good quality knives anywhere.
Bushcraft Black (tactical MOLLE sheath): Specifically made for bushcraft and field use, the ¾ tab tang high carbon steel blade has an anti corrosive black coating and the spine is ground especially for use with a fire steel. The MOLLE compatible sheath makes it great for military use. It retails for about $90 AUD with standard polymer sheath or $135 AUD with tactical MOLLE sheath.
Kansbol: This forest knife has a ¾ tab tang hybrid blade profile of both Scandi and hollow grind, making it great for hunting and skinning tasks as well as general wood cutting and carving. It retails for about $80 AUD.
Garberg: This is Morakniv’s only full tang blade and their strongest and most robust knife, allowing it to be used for a variety of tough tasks such as heavy battoning and survival use. It has a 3.2mm Scandi grind blade with 90 degree spine and comes in stainless or high carbon steel. It comes with a sturdy leather sheath or a Multi-mount system. It retails for about $250 AUD.
Morakniv also make a range of specialist woodcarving and hook knives.
An important reminder
Indigenous hunter/gatherers around the world still use knives for their daily living that modern bushcrafters and outdoor enthusiasts would consider inferior, yet they are able to survive and even thrive out in the wilderness. Remember – it doesn’t matter what knife you own, it’s the knowledge of “how” to use it that is more important!
About the author
Gordon Dedman is the founder of Bushcraft Survival Australia (BSA), an outdoor bushcraft survival school dedicated to teaching genuine and authentic modern and traditional outdoor living skills through carefully designed educational courses.
Gordon is a former member of the Australian Army 1st Commando Regiment and is presently a survival instructor in NORFORCE, an Australian Army Reserve Regional Force Surveillance Unit (RFSU). NORFORCE conducts patrols in the remote areas of Northern Australia, working closely with Aboriginal communities.
Gordon has trained at and completed numerous Survival and Bushcraft courses and certifications worldwide at schools run by Paul Kirtley, Ray Mears, Dave Canterbury, Lofty Wiseman and Bob Cooper. Gordon also works seasonally as an outdoor guide in the NT, taking clients on camping expeditions into Kakadu and Arnhemland.