Mitutoyo 177-281 Setting Ring, 0.275\ Size, 0.28\ Width, 0.98\ Outside Diameter, +/-0.00004\ Accuracy
- It is used as an accessory for inside micrometers, hottest and dial bore gauge.
- Used for quick zero adjustment of dial bore gauges, hottest, and inside micrometers.
- Actual inside diameter is marked on each ring.