uxcell Replaceable Soldering Tip 900M-T-3C Solder Station Iron The head shape of the Soldering Solder Tip 900M-T-3C is elliptic skew. Inner diameter of the 900M-T-3C Soldering Tip (approx): 0.160". Outer diameter of the 900M-T-3C Solder Station Iron (approx): 0.256". Total length (approx): 1.693"; Weight: 6.8g. Package included: 1 x Solder Tip 900M-T-3C.