This is an engineer sk-72 3.3mm chisel tip soldering iron bit for the engineer sk-70 series butane gas soldering irons (i.e. the sk-70, ska-70, skb-70 skc-70)

However, the engineer sk-70 series of soldering irons are sourced from the same Japanese factory as Weller (& Master Appliance) .....if you google the "engineer sk-70" soldering iron & then compare alongside a "weller pyropen WPA2" ...you'll see that they are the same OEM soldering iron as the engineer sk-70 series.

Therefore this tip is identical to the Weller tip part number 70-01-02 or the Master Appliance Ultratorch UT-100SiK Ultra Tip 70-01-02

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