The 162A-RTX replacement tips for 162A-RT contains 2 tips and 4 screws. Peek is a High Temperature thermoplastic with excellent chemical resistance. The material is static dissipative (10 ohmssq).It is inert to all common solvents and has a working temp of 480F. Specs amp; FeaturesFine Points, Soft Replaceable Tips, Application: Replacement tips for 162A-RT, Quality: , Surface Resistivity : 10 ohmssq, Shape: Straight, Material: Peek Tips, Tip Width: .02 (.5mm), Tip Height: .014 (.35mm)