I met Newton Martin a few years ago at the International Blade Show in Atlanta Georgia. Having had a fondness for the hollow-handled survival knife concept for a long time, his knives caught my interest as I passed by his table. We talked a little about what steels they were made of and how they were put together, and I have been wanting to give one a try ever since. More recently I saw the production version of his Apparo design, being made by Boker, on the cover of Tactical Knives Magazine. I was intrigued and searched out the knife and decided at that price it was a good chance to put Mr. Martin's concept through some field testing and check it out. Specs Overall length:..........12.375" Blade Length:...........7" Blade Thickness:......0.26" (6.6 mm) Blade Material:........440C Weight:....................19.2 oz. Sheath:.....................Leather The knife is sturdy-built, has a heavy guard, and isn't exactly small. It has 3 inches of saw on the spine The hollow handle has a storage space of 2-1/2 inches deep and 7/8 inches in diameter. So far I have a small tube with a few NATO matches, a short section of straw filled with PJCBs, and a striker strip. Some water purification tabs, and a button compass. There is room in this tube for a small ferro rod, and there is room in the handle for a larger diameter tube so still working it out. I've had mixed results from hollow handled knives over the years, some great...and some terrible, so I started out taking it sort of easy on the knife. The first thing I did was to play around with a piece of bamboo: limbing, cutting, whittling, scraping, and sawing. The knife came with a nice edge, and had no problems with the bamboo. The saw works really well versus the bamboo also. Small green saplings and heavy brier vines weren't much of a challenge The saw doesn't buzz through wood like a chainsaw, but works well enough for any necessary notching. In dry materials it is virtually self cleaning, in green material a tap of the spine on a limb cleans it out. End Part 1 Of 4 .