Grizzly H5615 Screw Pitch-Gauge 4-84
This is a very handy tool used for determining the thread pitch of a bolt, tapped hole, nut or screw thread insert. Helps to insure getting the right part the first time. Sizes #4-84 TPI52 sizes including 4 1/2, 5 1/2 and 11 1/2 TPI.
