Wenge is... nice, and its grain allows a firm a good grip. It's also a good vibrations conductor, many luthier use it for fretboards or even bass or guitar necks as it has a very distinctive sound (the german world known company Warwick/Framus is famous for using it "the sound of wood" is their slogan because of their über use of wenge)
Too bad it's now an endangered wood specie red listed on the IUCN though... I guess it does not matter THAT much if it's a lil' blade's handle, a bass fretboard could be sawn to make a dozen blade handles at least.
Wouldn't it be a issue for export then ? I know some rules don't allow some species to be imported, like Madagascar rosewood or some kind of ebony, it's a big problem in the US, some famous jazz musicians have even seen their instruments or bows seized by the TSA agents, make sure wenge is not banned in the US and if so, throw all the papers needed:
"Some plants, cuttings, seeds that are capable of propagation, unprocessed plant products and certain endangered species are allowed into the United States but require import permits and other documents; some are prohibited entirely. Threatened or endangered species that are permitted must have export permits from the country of origin.Every single plant or plant product including handicraft items made with straw, must be declared to the CBP officer and must be presented for CBP inspection, no matter how free of pests it appears to be. For information on importing plants or plant products visit the Plant, Organism and Soil Permits page."
Wenge is not CITES or ESA listed, but it's still under surveillance, better safe than sorry ...
Especially this permit is really important https://www.aphis.usda.gov/aphis/ou...ucts-permits/cites/ct_cites_endangered_plants