M2 Ø1 mm silicon nitride ball, tungsten carbide stem, L 20 mm, EWL 12.5 mm


Product code: A-5004-2021

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Straight styli are designed to inspect simple features where direct, unobstructed contact with a measured surface is possible. A tungsten carbide stem provides exceptional rigidity, particularly for styli with small ball and stem diameters. Silicon nitride is a very hard and wear resistant ceramic which can be machined into very high precision spheres. It does not have the attraction to aluminium and so does not exhibit the adhesive wear seen with ruby in similar applications.

Technical table

Ball diameter (mm)1
Centre styliN
EWL (mm)12.5
Holder materialStainless steel
Overall length (mm)20
Stem diameter (mm)0.8
Stem materialTungsten carbide
ThreadM2
Tip materialSilicon nitride

Technical documentation

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A-5004-2021