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This has to be the only aluminum beer bottle puncture tests ever done.  Anyone could use leather, nylon, wallboard or any other common house hold items. I used aluminum beer bottles. How much effort would it take to punch a hole into the bottle? If you can not get the cap off or the wife wanted to make wind chimes, which is the easiest knife to use?

The measuring instrument was very simple. Place a cheap, light weight plastic stamp pad on the dial.  A beer bottle was taped to the center of the scale. When pressure was placed on the knife, the stamp would be pushed. The harder the thrust, the farther the movement. SIMPLE. 

The list on contenders are;

1. Aitor   Model Gran Patrullero  #   280.1760

2. Victorinox  Model  Spartan Rudy #  53351

3. Tarry Levigne (a manufacturer of Theirs) A unknown model from the early part of the 20th century.

Many attempts were made and many beer bottles had to be emptied for this article. The results were as followed.

The list is from the easiest to the hardest.

Winner  was the # 3 Tarry knife---- average thrust to pierce was 6.0 to 6.2 kilos

Second was the # 2 Victorinox knife---- average thrust to pierce was 6.5 to 7.0 kilos

Last was the #1 Aitor knife---- average thrust to pierce was 9.5 to 10 kilos


What does this prove?  Nothing, except I sure had fun doing the testing.