Bowers XT Analogue Standard 3 point Micrometers W/O Ring 1-1.3/8 XTA25N CAL67 B4 and requires an eye end

and requires an eye end adapter to mount to Mark-10 force gauges or force sensors

This stylus is a disk with a thickness and diameters which vary and allows probing of centring shoulders and grooves

and test frames

Optional extension rods can be attached for measuring deep holes

and 16 gauges

Bowers XT Analogue Standard 3 point Micrometers W/O Ring 1-1.3/8 XTA25N CAL67 B4 and requires an eye endBowers XTA Standard Analogue Bore Gauge This bore gauge set from Bowers Group, includes the XTA Micro Analogue bore gauges. These bore gauges feature a more compact mechanical controller which is lighter and more ergonomically designed. The XTA Micro's Vernier scale improves resolution from 5 to 2. FEATURES More compact mechanical controller Lighter and ergonomically designed Improved functionality Vernier scale added to improve resolution from 5 to 2