Mitutoyo Dial Test Indicator .03" x .0005" Basic Set 90 Degree WD124060W3 12mm Band Width WD124060W3 12mm Band Width Worm Drive Clamp WD12 40 60mm capacity W3 Features: Light product easy assembly and space saving with compact housing and screw design Bleeder valve for purging unwanted air Useful for both alignment and for measurement purposes Mitutoyo proprietary new design permits smooth pointer operation Flat crystal makes graduations easy to read Strong frame provides excellent rigidity and durability Non magnetic pointer and contact point permit reliable operation even in magnetic environments Clear and concise wide dial face allows excellent visibility The surface of the crystal is hard coated for excellent scratch resistance O ring protection guarding against oil and water penetration 0005" graduations Dial Test Indicator Basic set Dial reading 0 15 0Designed to probe surfaces that cannot be reached with a normal dial gauge