Okay, so you need a super precise soldering tip for those tiny electronics jobs? This ETS sharp long conical tip is exactly what you're looking for. It's got an ultrafine 0.04mm (0.0015\) needle point that's perfect for working on 0402, 0603, TSSOP, and other small SMT/SMD components - you know, the stuff that makes you squint. It fits a ton of Weller stations like the WESD50, WES51, WE1010NA, WE1010EU, PES50, PES51, LR20, LR21, and more (check the full list in the title, it's long!). It's pre-tinned, made for lead-free solder, and built to last. If you're doing circuit board repairs, micro-soldering, or any high-density work, this tip gives you the control you need. Seriously, it's like the surgeon's scalpel of the soldering world. Just match it to your handle model before buying!