They last about 10 very short soldering periods. You break in half and hope he doesn't tail you like I did when he decided to break in half. THIS IS VERY CHEAPLY MADE AND NOT WORTH THE MONEY UNLESS YOU ARE LOOKING FOR AN EMERGENCY PAIR OR SOMETHING. TWO MORE OF THESE TIPS TOGETHER! THEY MAY WORK FOR 7200 AND LOWER BUT THEY ARE NOT THOSE FOR 8200 I PROMISE.
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