The best table-top sagitta gauge money can buy.
This is the same reliable gauge that we use in our own facility. Two linear bearings that slide on posts bring the indicator tip straight down to the center of the tool. The tool clamp, directly under the indicator, is designed to lock at 90-degree increments giving you accurate base and cylinder curve measurements. Two contact points on the gauging surface ensure proper alignment of the indicator tip. This gauge has a +15 diopter to –10 diopter gauging range and is accurate up to 0.002mm. Optional Mitutoyo digital .001mm IDU or .01mm indicator. Optional blocked lens adapter can be purchased.