Straight styli with a ruby ball and stainless steel stem have been developed for daily use on coordinate measuring machines (CMMs) and provide a reliable and cost-effective solution for a wide range of measurement tasks. The combination of a stainless steel stem and a precision ruby ball offers high rigidity, robust construction, and an excellent price-performance ratio. The stainless steel stem ensures high stability and supports precise, repeatable measurement results, even in demanding day-to-day inspection environments. At the same time, the material is highly resistant to corrosion and designed for a long service life. The ruby ball is the proven standard material in tactile metrology. Thanks to its high hardness, wear resistance, and dimensional stability, it is suitable for measuring a wide variety of materials and geometries. Ruby remains one of the most widely used ball materials for tactile probing systems worldwide. The product range includes styli with ruby ball diameters from Ø 1.0 mm to Ø 8.0 mm, covering a broad spectrum of typical measurement applications. Special sizes and custom designs can be requested at any time via the configurator or by email. The straight stylus with a ruby ball and stainless steel stem is the ideal choice for users who value precision, reliability, and cost-effectiveness in their daily measurement processes.