Features Ruby Ball Tip: The ball at the end of the CMM touch stylus has a long service life and will not wear the surface of the abrasive material. Standard Size: CMM probe stylus adopts standard size with M4 thread, contact ball diameter is 6mm and length is 110mm, practical and easy to use. Anti-collision Protection: The ceramic shank of CMM touch probe tool provides extra protection for the probe to avoid shattering in a collision, greatly extending the service life of the stylus. Straight Line Design: The straight line design of the CMM probe stylus is designed to detect simple features with direct, unobstructed access to the measurement surface. Durable Materials: This CMM touch probe has a standard M4 thread and the shank is made of stainless steel and ceramic for good performance and long-lasting durability. Specification: Item Type: Probe Stylus Material: Stainless Steel, Ceramic Thread: M4 Application: 3 coordinate machine tool stylus Specification: A-5000-3712 Length: Approx. 110mm / 4.3in Contact Pin Diameter: Approx. 6mm / 0.24in Package List: 1 x Probe Stylus 1 x Storage Box Package List 1 x Probe Stylus 1 x Storage Box