Needed a tool to deal with the Lezyne pump head sometimes pulling out Presta cores. Also useful for injecting sealant for tubeless applications. Well made and has been useful. I try not to think how much money I spent on it.
Bought this as I knew using a pair of needle nose pliers to remove valve cores for my tubeless mt bike tires was just asking for trouble. This tool just works. Made the job of removingreplacing valve cores easier, faster, and with less risk than pliers. Love that it also will work with valve extenders and thus is useful for my road bike as well. Probably a little pricey for small piece of metal but sure does make the job easier.