OPST Shank Chuck
Free Shipping on Orders Over $50
OPST Shank Chuck Tool. A tool that can hold both shanks and some tubes. By unscrewing the chuck housing, you can flip the inner chuck one way for shanks and the other way for tubes. The shank will hold shanks down to OPST Micro Shanks, which are 0.90mm in diameter. Tube adaptor inner diameter: 2mm.