Use the Crowfoot Flare Wrench on any 1/4" drive torque wrench to ensure accurate torque on delicate disc brake compression fittings. A perfect add-on for our Demi Torque Wrench. - Use with a torque wrench to accurately torque delicate hose fittings found on hydraulic disc brakes. - 1/4" square drive and 7 and 8mm flare style box wrenches - Precision laser cut and heat treated tool steel for strength and lasting performance.