Stonfo Hackle Gauge

The Hackle Gauge helps to choose the hackle or hook size quickly and easily. Just bend a hackle around the plastic pin and read the appropriate hook size on the curved scale. The graphic clearly indicates the sizes of the hooks from 4 to 22 , and the colors of the curved scale allow a good view with both light and dark hackles. It can be applied directly to the vise stem and can be rotated when not in use.