The 332D three star micro tip 90 angle 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: Angled, Tip Angle: 90, Material: SS, OAL: 6.5 (162.50mm), Tip Width: .001 (.03mm)