Attention!!! - please write in the comments box when purchasing, which set do you want? I send 2 cones +2 mini-wawes by default (from the first picture)

Screw-in (threaded) inch soldering tips (Tip - Weller Replacement for SP23, SP23D, SP25) made of KGHM-POLSKA 99.9% pure electrolytic copper. Exceptional heat conduction. Rolled from the purest "YKY16" wire with a diameter of ~4.3 mm (0.17 Inch).  Extruded 10-24UNC threads + crushed cone on 60 MPa press for strengthening, then ground "sharp" and tinned with SnAgP alloy, so the tips perfectly catch the tin during soldering including SMD. The addition of phosphorus in the alloy is designed to prevent rapid oxidation. 2% Silver (Ag) is added to delay the "leaching" (dissolution) of precious metals (Au or Ag) from the PCB surface into the Sn solder at reflow temperatures. If gold is dissolved in the solder, Au/Sn intermetallic compounds form, leading to brittle solder joints. The melting point for Sn62Pb36Ag2 is 179 deg C compared to 183 deg C for the Sn63Pb37 eutectic, which also helps to achieve a uniform joint temperature during re-soldering. The arrowheads are durable with old SnPb alloy, quite durable with SnAgCu alloys (SAC 407, SAC305). On request, I can add as a free 5 cm section of SAC305 alloy from Alpha

4 pieces per set - conical shapes by default, in case of unusual shapes in additional comment field please write if you need another type e.g. flattened - I always check this information (if possible please attach a photo).

The soldering tips are compatible with:
  • SP23
  • SP23D
  • SP23L
  • SP25
  • SP25NUS
  • SP25NKUK
  • All screw-in soldering tips with 10-24 UNC inch threads


Soldering tips are not 100% resistant to acids or aggressive acidic fluxes, but their lifetime has been significantly extended (thanks to the bath of copper in SAC305 alloy from Alpha with 3% silver content, modified with phosphorus - the layer of tin with silver is already intermetallic, this is not a simple electroplating. The copper is supersaturated!!! This results in excellent heating properties). All at a promotional price with free shipping. My dear friends it is important to heat sensibly and clean with a damp sponge. The tips are beautifully wetted, ready for immediate soldering - the photos do not fully reflect this, because they have been greatly enlarged, and I have no artistic talent for advertising.

Dear buyers, the tips are shipped from Warsaw by priority. I sold thousands of them in Europe, slightly smaller with metric thread. The time of receipt from being marked as a shipped item in the case of Europe was 5 days with a tolerance of +-3. Although I enter a longer order handling time I ship immediately the next business day, but I am aware that delivery overseas can be 3 weeks and sometimes even longer. It also depends on the local carrier. Despite the lack of monitoring, I recommend shopping and wish you to be patient while waiting because the dooms are really a prole. Claims please write after min. 21 days. I am an honest seller, unfortunately for many auctions I returned money, and after the deadline people received the product, I suffered a loss myself. Then I am condemned to your goodwill to inform me about it and settle. After the new year, I will make tracking available for a small fee.