Review on 🔥 HAKKO FX-888D Compatible Kzerlly T18-D24 Soldering Iron Set - 5pcs for Precise Soldering by Broderick Cash

The diameter of the cylindrical part is slightly larger than that of the T18 tip I replaced it with. The old one slid right down into the strainer (the part that fits over the tip and heating element and is held in place with a nut). You need a little persuasion. Instead of using the heating element as a pusher and damaging it, I used a stud that is larger than the inside diameter of the soldering tip but smaller than the inside diameter of the shield. I pound it until it's all the way down, then carefully thread the heating element through the screen and tip.