What exactly is that for?If you hold it properly the spikes will dig into your hands,surely.
The hooks screw in and out of the guard - to be used as a grappling hook to enable you to absail into an enemy encampment.
Sawback is for cutting through HALO canopies
Hollow handle not only conceals a full survival kit but can also be used as a makeshift firearm using small sachets of sulphur, saltpeter and charcoal supplied.
On earlier models the inner cap of the screw-off handle contains a compass which doubles as a magnetic tracking device. This was discontinued after it was realised that the magnetic tracker interfered with the compass - also, if the tracker was deployed, you had no compass left to know which way to go.
This feature was re-introduced after several months when it was realised that these tools would never actually be used, instead the knives would spend their time being hidden under beds by teenage boys for fear of their parents finding it - later to be hidden under beds by bushcrafters for fear their mates finding it.