- Measures the outside diameter of cutting tools (such as taps, reamers, end mills) with an odd number of flutes.
- With Ratchet Stop for constant force.
- Supplied with setting standard.
- V-anvils with a centerline groove are available.
- They are useful for measuring pitch diameters of taps which have a small diameter by using single-wire method.
- Supplied in fitted plastic case.
- .09-1" Range have .0001" graduation, all others have .001".