The 31B-SA-SE one star reverse action straight tweezer has a special groove in the tips to hold small screws. It is very useful when needing help getting them started. It is also useful when working in dense and hard to reach areas. It is made of anti-magnetic stainless steel.Specs amp; FeaturesReverse Action, Holes in tips, Application: Has special grooves in the tips to hold small screws, Quality: , Surface Resistivity : Conductive, Shape: Straight, Material: Anti-Mag. SS, OAL: 6.5 (162.50mm), Body Width: 0.393 (9.83mm), Body Height: .074 (1.85mm)