The Milwaukee 31-12-0018 Nibbler & Shears Cap-Lock Pin is a small but essential fastening component used to lock and hold internal parts of nibblers and shears in proper position during operation. It works by fitting precisely into the designated housing, preventing unwanted movement or loosening caused by vibration and repeated use. By maintaining correct alignment of moving componen... https://www.wholetoolbox.com/milwaukee-31-12-0018-nibbler-shears-cap-lock-pin