Moore & Wright - Ext Micrometer 0-25mm Carbide (MB-200-01) Small Base The calibrated flange acts as

The calibrated flange acts as an overlay that clearly shows if the edge of the bullet hole touches the higher scoring ring

A special fine thread is used to attach them to the gauges

Bag height is 100mm

or maybe you just want a second one because one is included when you buy the machine

The ATB is constructed from 6061-T6 Aluminum with a Type III hard anodized finish and heat treated alloy steel with a Manganese Phosphate finish

Moore & Wright - Ext Micrometer 0-25mm Carbide (MB-200-01) Small Base The calibrated flange acts asOutside Micrometer 0 25mm Range 0 25mm Resolution 0. 01mm Hammertone finished frame with insulated grip Satin chrome scale Tapered for easier access to difficult areas Packed in plastic box with standard and adjusting key