High precision expert dial test indicators for precision measuring work Automatic needle pointer - Inverts automatically with change of direction of the contact point to provide constant clock-wise readings and measuring efficiency and accuracy Miniature bearing at the pivot point optimises accuracy of micro adjustments and eliminates any rod play Water proof and dust proof dial face features O-ring and additional internal housing sealing Superior quality spindle rack, pinions and gear trains ensure longevity Easy read design incorporates white dial face with black graduations and pointer needle Knurled Bezel provides a firm and secure grip Manufactured to JIS B 7503 Made in Japan