The only two I "pair" together is my Ontario Specplus SPI-95 and Ontario 18" machette. with those two you can cut down a forest and make a log cabin fort. I'm now on my second SPI-95 and 3rd machette. The SPI-95 was my EDC when in AZ so 2 in 10 years isnt to bad.The machette's got almost daily use, wore one completly out, took about 2-3 years, the 2nd one lasted a good 4 years, and now the 3rd one dosnt see much use as I live in the big city now. These are now my bush knive's since I cant carry them in this city.