Stylus tip for contact probe

摘要

There is disclosed a stylus tip 16 having one or more coating layers 28,30 of material on a substrate 20. The materials of the layer(s) are chosen to provide a colour distinction between the layer 28 and the substrate 20, or between the layers 28 and 30. The colour distinction will become apparent to a user when wear takes place on the stylus tip because the distinguishable colour of the underlying substrate or layer will show through. The coating layer 30 may be wear resistant. <IMAGE>