Any good hobby shop should carry them. My last trip to California, I took the model and some tools with me and I needed a pin vise in an emergency situation. I thought I had one, but lo and behold, there was none in my portable tool box! Fortunately, on that trip, I had a chance to see a friend in Northridge, and on the way, I stopped at Smith Brothers' Hobbies and found a pin vise for my portable tool kit.