Thick tree cutting

Demonstration of how to cut thick tree using only woodsaw:

Disclaimer: I do not own any law of this movie. It is only educational.

German Army Knife by Victorinox

I bought old Bundeswehr knife recently. Version 108 mm, couple tools: blade (relatively big), spike, corkscrew, combo tool with woodsaw, can & bottle opener, flat screwdriver.
Good choice for minimalist outdoorsman, but too poor to craft.