Craftsman Metric Flare Nut Wrench Set, 5-Piece, 9-42013 Craftsman 5-pc flare nut wrench set metric includes: 9x 10mm, 10 x 12mm, 13 x 14mm, 15 x 17mm and 16 x 18mm Works on aluminum, copper and brass hexagonal fittings Wide profile for greater leverage Molded storage case included Backed by Craftsman's Lifetime Guarantee