PEAK&';s Tube Fly Vise Head is available separately for PEAK vise owners who do not want to buy a whole other vise. The head is easily changed out and comes with the same two pins (1/32" and 1/16") as the complete Rotary Tube Fly Vise and a 5/64" hex key (the only tool required to change out the heads). Not compatible with PEAK&';s non-Rotary Vise (PRNV) or Jurassic products (JS).