Hook / Hackle Gauge

Determine hackle or hooks size quickly and easily with the Griffin Hook / Hackle Gauge. Designed to fit on most vise stems, the Griffin Hook and Hackle Gauge correctly identifies size 4-22 hackles and 4-16 hook sizes. When measuring hackle simply bend a hackle around post located in the bottom left corner, whichever line on the curved graph the hackle tips end on is the correct size.