4-56 TPI/0.5-6mm, 60 Degrees, Screw Pitch Gage Set, 28 Leaves (4, 6, 8, 10, 11, 11.5 12, 13, 16, 20, 28, 32, 40, 56 TPI) ( 0.5, 0.75, 1, 1.23, 1.5, 1.75, 2-5 by 0.5, 6mm)
Features
- Thread pitch size is stamped on each gage.
- Comes with a locking clamp
- Both concave and convex radius gages become a pair.