Design: High-precision feeler gauge measuring devices with gemstone-supported measuring mechanism in a compact, robust design. The housing and dovetail holding prisms are made from a single piece, which provides exceptional rigidity against bending. Corrosion protection through matte chrome plating of the housing. 1000-readout. TESA - ruby-supported measuring mechanism with a carbide measuring ball. Sturdy monoblock housing; non-magnetic. Swiss Made. Note: Additional information DIN 2270: Readout 0.002/0.001 - deviation range 2 µm, total deviation range 4 µm, measurement value reversal range 2 µm. Spare part: Replacement probe with carbide or ruby ball available upon request. Delivery includes: Including clamping pin ⌀ 8 mm. Use: As an accurate comparison measuring device for checking the deviation from nominal dimensions for run-out tests, internal measurements, checking parallelism and flatness, as well as for aligning workpieces.