OPST Interchangable Shank Chuck Tool
The OPST Shank Chuck Tool is designed to fit on every vise in the universe-if this tool does not fit with your vise, OPST will refund your money.
This tool can be used to tie both shank flies and tube flies. For this reason, it is the steelhead fly tiers' dream. By unscrewing the housing, you can flip the tool to work for hook shanks or for tubes.
The shank side will hold as small as OPST's micro shanks, which are approximately 0.9 mm in diameter. The Tube Adaptor's inner diameter is 2mm.