Teng 30M X 10Mm Construction Tape Measure Measuring Tools Tapes & Rules Ljs Champion 1 4in x 1in UNF Champion 1 4in x 1in UNF Set Screw Gr5 20pk 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 Steel roller cage to prevent case from being cut by blade during retraction With nylon coated steel tape blade with belt clip