We apologize you experienced an issue with your order, we're here to help. I located a related email from the same email/sender at this time that we replied to within 3hrs and 15 min of receiving explaining where the core tool was and asking to let us know if it was still missing and we would send a replacement. Email reply: “The small valve core removal tool is shipped inside of the Injector tube and can be easy to miss. Please double check your package, open the Injector and slowly remove the plunger to locate the tool in the bottom of the Injector tube.” We did not receive a response. We apologize for the inconvenience, from time to time it’s possible there may be a missing piece in which case we will immediately offer options to resolve the matter and ship a replacement.