
Designed to tighten collars over flared pipes, like vehicle brake lines. However, you can use on a standard hex head. It spreads the load onto more corners of the head than a standard spanner, decreasing the risk of rounding the shoulders.

US PRO 6 Piece Metric 6 Point Flare Nut Spanner Wrench Set 8 - 24mm 2046
5.0

DURATECH Flare Nut Spanner Set, Double End Open Ring Spanner Set, Brake Line Spanner Wrench Set, Metric, 3-Piece, 10x12mm, 13x14mm, 15x17mm, with Storage Pouch
5.0

Draper 6 Piece Flare Nut Spanner Set | Combination Spanners Set 6-22mm | Spanner Roll | 17759
5.0