The 505-20-US-ST five star 6 soft tip insertionextraction tool has soft acetal inserts eliminating scratching and nicking of delicate IC leads. The dash number references the total amount of pins on package. It Features: molded static dissipative (10 ohmssq) ergonomic grips with dual leaf springs for smooth action.Specs amp; FeaturesInsertionExtractionApplication: Designed to handle DIPIC package, Quality: , Surface Resistivity : 10 ohmssq, Material: Carbon Steel, OAL: 6 (150mm), Body Width: 0.42 (10.5mm), Body Height: 0.25 (6.25mm)