Alden Wrench 56039 Double Head Ratching Open-End Wrench 3 Piece Set Metric
Unique open-end double headed ratching wrench metric set. Three sizes: 10-12mm, 13-14mm, 15-17mm. Small 30 degree swing angle needed to ratchet, interactive grip increases with force. Made of 17-4pH stainless steel for aerospace or marine use.