Birzman Flare Nut Wrench 7 & 8The Birzman Flare Nut Wrench enables precise engagement with delicate fasteners minimising risks of stripping the edges. It has double-sided 7 & 8 mm openings for use with hexagonal fasteners on hydraulic brake systems and features ¼" drive slots for use with a torque wrench. Specification: Material: Alloy steel Size: 90 x 15 x 4 mm