Made of materials, . CMM Probe CMM Stylus Pen Thread CMM Styli Ball CMM machine tool probe probe CNC machine tool Straight stylus is designed to check simple features, in these simple features, you can directly contact the to be measured without obstacles. The white steel stem has excellent rigidity, especially suitable for small ball and stem diameter styli. It is considered the industry standard for stylus nibs. It is of the hardest materials and is suitable for most applications. Long service life, not wear the due to abrasive materials. Thread specification: Diameter:3mm Length:50mm Effective working length:38.5mm Note: If you are not professional for technology, please don't buy this product. Installation guide not included, we strongly recommend you professional installation. Please check as much as possible to make sure the item is what you need. Tips:The product may be updated constantly,Due To Different Batches, The Actual Product May Have Slight Differences Or Color Differences, Which Does Not Affect Use. Colour:As Shown Material:Metal Package Contents: 1 * CMM probe Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.