The 332E three star micro tip hook stainless steel probe has 1 mil tip, which is the smallest available. The overall length is 6.5. Specs amp; FeaturesMicro TipApplication: Great for very fine work, Quality: , Surface Resistivity : Conductive, Shape: Hook, Material: SS, OAL: 6.5 (162.50mm), Tip Width: .001 (.03mm)