I needed an extra long drill bit for a project. The trouble is, once everything got together, 14MM is too big. (By the way, 14MM is almost exactly 9/16". It's still in the sealed package. So, if you can use it, I can't. Please call 425-two one three-6615. (Yes, I am in Billings Heights). Please call only. I don't return emails or texts. I especially don't answer "Is it still available?" If it's listed it is still available. I pull listings immediately.