Durable and long-lasting: Made of high-quality materials that ensure durability and longevity. Accurate measurements: Equipped with a 75mmStylus with a 5mm diameter Ruby Ball Ceramic Rod and M4 A-5003-0236, providing precise and reliable measurements. Versatile: The probe tip ball ceramic shaft threaded shank M4 is compatible with a wide range of machines and applications. User-friendly: Easy to use, making it accessible to both professionals and beginners. Resistant to wear and tear: The Ruby Ball Ceramic Rod has a long service life and does not wear the surface from abrasive materials, ensuring consistent performance over time.