- Length: 108 mm
- Series: 154
- Type: Imperial
- Measuring Range: 0.4 to 0.5 in
- Item Features
- Used with an outside micrometer for measuring inside diameter of bores
- 4 sizes of gages are supplied in a fitted case
- Extra long for gaging deep and shallow holes, slots, and similar workpieces
- Gaging surface is fully hardened to insure long tool life