Features:
- Ratchet thimble
- Microfine graduations on satin chrome finish for easy reading
- Graduation: 0.0001"
- Non-rotating spindle
- Blade thickness = 0.030"; blade width = 0.236"; blade penetration = 0.255"
- Sizes over 1" include a calibration standard
- To measure the outside of workpieces which have narrow grooves.
- "T" slots and other dimensions blocked by shoulders or lands where standard type micrometers cannot be applied.
