The from is a conical long soldering tip used with WP80, WSP80, MPR80, FE 75, TCP soldering irons. This tip also used with LR21, MLR 21 soldering irons with adapter.
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Solid copper plated with iron for maximum durability and long life
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Nickel and chromium non wetting area behind the working surface
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Designed to provide maximum heat transfer from the heater to the tip