Wisdom 6-Piece Flare Nut Wrench Set (1/4" - 1"), #01-FNW6 Forged, hardened, and tempered high carbon steel construction with chrome finish Perfect for working in tight spots, fuel lines on diesel engines and other automotive applications Wrench size range: 1/4" x 5/16", 3/8" x 7/16", 1/2" x 9/16", 5/8" x 11/16", 3/4" x 13/16", 7/8" x 1" Hex double-end broach style wrenches Raised Style