A set of 10 torque extension adaptors, with an open Bi-Hex (12pt) profile from sizes 10mm up to 19mm, to enable the use of a 3/8"D torque wrench to tighten a flare nut or wired sensor to the correct torque. Please note: torque settings must be recalculated to take into account the extra length of these extenders. Supplied in an EVA foam tray, designed to fit roll cab drawers, keeping the adaptors clean, tidy and ready for use.