Jääkäripuukko seems sturdy and cheap:
Traditional and proven functional Finnish puukko profile with a drop point. The thickness of 4,2 mm makes this a bit more robust than most old timey traditional Finnish puukkos. The grind is a scandi grind with a tiny secondary bevel, currently the most commonly used Finnish puukko grind.
The strong blade can take a beating, you can use the Jääkäri for batoning without problem, just don´t hit your fingers or the rubber handle, those are not strong like steel.
All Terävä carbon steel knives are made from 80CrV2. The "thing" is that this is really nothing fancy or special, just a very good tool steel which can take a beating and offers good edge retention. 80CrV2 has over the decades earned a reputation as a solid and reliable steel, especially for our purposes.
The heat treatment we use leaves the surface of the steel softer (approx. 52 HRC) than the inside (59 HRC). This functions a lot like fancy differential heat treatments giving the blade added strength. The surface is very resistant against any microscopic fractures or other blemishes, this results in virtually zero problems caused by material defects!
When the blade is ground the harder inner steel is revealed, even though the outer surface is only 52 HRC the actual edge is 59 HRC. This is also why we grind bevels onto the sides of the spine, otherwise the spine corners would not be hard enough to strike sparks from ferro rods!
The rubber grip is somewhat ergonomically shaped, but not one of those crazy finger groove things. A small finger guard on the front, a little belly in the middle and a knob at the back to keep your hand from slipping and also make it possible to use a Leuku style chopping grip.
The tang runs all the way through the grip and comes out the back, forming a little knob with a hole in it for lanyards and such. The knob can also be used to hit things, naturally.