Starrett Screw Pitch Gage STR-6

A screw pitch gauge, also known as a thread pitch gauge, is used to determine the pitch of a thread on a screw or in a tapped hole. This tool saves time by allowing the user to quickly categorize the thread shape and pitch. . The Starrett 6 Screw Pitch Gage includes a substantial steel case, a number of folding leaves at both end and 30 leaves. This model features a 4-42 TPI range.