Spherically ended styli Refine by Thread M2 Ball diameter < 1 mm ≥ 1 - ≤ 1.5 mm ≥ 2 - < 3 mm ≥ 3 - < 4 mm ≥ 4 - ≤ 5 mm Effective working length < 11 mm ≥ 11 - ≤ 29 mm ≥ 30 - ≤ 50 mm Stem material Steel Tungsten Carbide Tip material Ruby Tungsten Carbide << Previous12 Product Unit price Add to cart M2 Ø2 mm ruby spherically ended cylinder, stainless steel stem, L 21.2mmA-5000-7812 $147.00 << Previous12 Shopping security Recall your cart