ETT Conical Soldering Tip

Soldering Tip ETT Soldering Iron Bit/Tip, Weller ETT Conical Soldering Tip, 
Weller ET Series ETT Soldering Tip Conical 1/4 0.60mm x 0.91mm x 15.90mm. 

An "ETT Soldering Iron Bit/Tip" is a specific type of fine, conical-pointed soldering tip, most commonly associated with soldering stations made by the brand Weller. It is a versatile tip used for precision soldering work on electronic components. 

Conical fine point: The ETT tip has a narrow, rounded point, similar to a needle. This makes it ideal for precision applications, such as soldering small surface-mount components (SMD) and working with integrated circuit (IC) pins.