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.
The Starrett 155 Screw Pitch Gage includes a substantial steel case with a number of folding leaves at both ends. This product includes 27 leaves, 2-1/4-28 TPI range with locking device and a 60...
The Starrett 579 Telescoping Gage is used for determining the true size of holes, slots, and recesses up to 6" (150mm). The ends of both contacts are hardened and ground to a radius to allow proper...