- RT Ultra series soldering tips are suitable for WXUP soldering irons - powerful active soldering tip for the smallest micro-components from 0402 up to 01005 - short distance between tip and handle, therefore maximum precision and maximum tool handling - MIL-SPEC / IPC standard (potential-free, MS versions) - very short heat-up time - energy-saving - long service life - type/dimensions:RTU 004 C MS X/Ø 0.4mm - design:conical/MS