Technology for common knife: https://workdrive.gboslaser.info/file/qdgm8ffd3288a332a43ca901d2c3be53e3d7a Technology for round knife: https://workdrive.gboslaser.info/file/qdgm8f76ec140278d43aaa874bcddcde8f1ab
Knife head installation video: https://workdrive.gboslaser.info/file/qdgm8d7aef5b71afb4e618e11b766214ec880 Knife head open video: https://workdrive.gboslaser.info/file/qdgm82c4ff3d16d794cc4adb0bb6a4b638481