Blades like no others !

[Nemo]

Hello,

almost no others.
but have you noticed that on some rare blades
like the Military, the Native (also CRKT Apache) the strenght used in cutting can be transmitted directly to the blade without to be transferd by the handle.
Because you can applie your strenght directli on the hump and the "Ricasso" of your knife.

It's also a incredible security if the lock could failed...

cheers,
JM

 

[Mr Blonde]

Yes, not to mention te comfy "feeling" of fully controlling the blade. I am looking forward to more reviews from you and Fred on Spyderco Knives. How about the Civilian or Matriarch?

 

[Nemo]

HEllo Mr Blonde,

thank you for the nice words,

we got a review of the Civilian.

We will reedit again soon.

cheers,
JM

 

[Costas]

It's all about TORQUE!

I don't mean to sound rude, or like I'm correcting anyone (I really like JM's reviews), but I have to disagree on "force being directly transmitted", viewed from a strictly technical point of view.

When applying a lot of pressure to cut with a knife, what you mostly do is apply torque (leverage) to the handle. The forward part of your hand, either the thumb or the base of the index finger (depends on how you hold the knife) represents the fulcrum point, and the fingers that "pull up" from underneath the handle generate the force that produces the torque. If you arbitrarily choose a point that this force is applied (e.g. underneath the little finger), then you multiply the force of the fingers, times the distance to the fulcrum point (the place that the thumb pushes down) to find the total torque. This is balanced from the opposing torque from the blade, that is: resisting force from the material that you cut, multiplied by the distance to the (same) fulcrum point. So, by pushing with your thumb on the "hump" of the blade, the only thing that you do is moving the fulcrum point forward.

This explains why you need to cut with the part of the blade nearest to the handle, if you want to cut something really tough (like a plastic tie-wrap for example). If you try to cut with the tip of the blade, the opposing force from the material is the same, but the resisting torque is much larger because the force is multiplied by a larger distance to the fulcrum point.

Sorry if all this is not very clear, it would be easy to explain with a diagram but I don't know how to post a picture here.

 

[Nemo]

You are right Costas.

When I cut hard things my thumb is often pushing the blade directly behind.
That's why I like rounded back blade.

JM