The 128A-SA three star S.M.D. angle tip tweezer has a 1mm groove in the tips for handling small cylindrical devices. The angled tips provide superior visibility. It is made of anti-magnetic Neverust stainless steel.Specs amp; Features, Grooved Tips - .04, Application: Handling miniature cylindrical deviceswires, Quality: , Surface Resistivity : Conductive, Shape: Angled, Material: Anti-Mag. SS, OAL: 4.25 (106.25mm), Body Width: .393 (9.83mm), Body Height: .06 (1.5mm)