Complex sentence: A variation of the fid, the Gripfid, using for Ply-Split Braiding it adds a jamming cleat to pull a cord back through the cord split by the fid's point.
Split into simpler sentences: A variation of the fid, the Gripfid, is used for Ply-Split Braiding. It adds a jamming cleat to pull a cord back through the cord split by the fid's point.