The Weller RTM 003 S NW MS (T0054462671N) RT Micro Active Soldering Tip, Chisel, 0.3 mm x 0.1 mm, MIL-SPEC, Not Wettable, for WXMP MS & WMRP MS Soldering Irons, is a versatile performance active tip for micro and standard components, making it suitable for the widest range of applications. The tip features a built-in sensor and excellent heat transfer, resulting in the fastest heat-up and recovery time, while also allowing users to reduce downtime for a faster workflow and better results. In addtion, the boomerang handle design allows for precise handling, while also providing users an ergonomic and secure grip. The tip can be quickly changed without a tool.