TH4158 M2 Ø8 mm ruby ball, stainless steel rod, length 11 mm

The direct measuring needle is suitable for detecting simple features that can directly contact the measured surface without obstruction. Stainless steel measuring rods have excellent rigidity and are very suitable for applications with low weight requirements. Ruby is recognized as the industry standard material for measuring needles and is currently one of the hardest materials available, suitable for most applications. Due to the presence of adhesive wear, it is not recommended to use a ruby probe when scanning aluminum workpieces