Tesa Interapid 312 74.111366 0.01mm 1.6mm Range Lever Test Indicator

The Tesa Interapid 312 (part number 74.111366) is a Swiss-made lever-type test indicator manufactured by Hexagon/TESA Technology, new in original case with Hexagon declaration of conformity documentation. As decoded from the label (INTERAPID312 1.6 0,01 D37.5), this instrument has a measuring range of 1.6 mm, a graduation (resolution) of 0.01 mm, and a dial face diameter of 37.5 mm; the dial reads bidirectionally from 0 at top with graduations to 40 on each side, confirming the 0–40–0 scale layout visible on the face. The model 312 features a dovetail-style swiveling contact point mount, a lug-back stem for mounting in a 4 mm bore holder or magnetic base, and the characteristic Interapid side-reading lever mechanism that allows the contact point to deflect in the plane of the dial face — making it well-suited for bore runout, surface runout, and machine tool setup work where a standard plunger indicator cannot reach. The instrument is delivered in the standard Interapid blue molded plastic protective case with foam insert and includes the TESA/Hexagon declaration of conformity, consistent with new production quality standards.

Product Specifications