Specification Brand : HARFINGTON BulletPoint1 : Size - Wrench Sizes: 5/16"; Drive Sizes: 3/8"; Total Length: 37mm / 1.46"; Square Hole Size: 9.5mm x 9.5mm / 0.37" x 0.37"(L x W); Package Include: 2 x Drive Crowfoot Wrenches. BulletPoint2 : Material - The flare nut crowfoot wrench is made of the preferred 40Cr steel, which has high hardness, strength and good wear resistance, able to withstand greater torque and pressure without deformation or damage. It adopts a surface treatment of chrome plating, with a smooth and flat surface without burrs, enhancement rust and corrosion resistance, strong and durable, suitable for various working environments. BulletPoint3 : Feature - Rounded head design of the open-end wrench eliminates any stripping or splitting of the wrench and ensures a snug fit on fasteners, helping to get the job done efficiently. The corresponding size is engraved on each wrench in clear fonts for easy identification. BulletPoint4 : Application - Widely used for hard-to-reach fasteners that ordinary open-end wrenches cannot reach, they are connected to drive ratchets, extension rods or torque wrenches and are suitable for work in tight spaces, such as narrow engine areas in cars, mechanical equipment, and hard-to-reach areas under sinks. BulletPoint5 : Notice - To achieve better working results, please select a crowfoot wrench of the corresponding size and ensure that the set matches the tool. Install the selected crowfoot wrench head correctly on the wrench handle and ensure that it is firmly installed to avoid loosening or falling off during use. Maintain a stable connection between the crowfoot wrench and the workpiece during use to avoid slipping or deflection that may cause damage. BulletPoint6 : Product 2: Key sizes: 1/2, 3/8, 5/16, 1/4, 7/32, 3/16, 5/32, 9/64, 1/8, 7/64, and 3/32-Inch BulletPoint7 : Product 2: High-leverage blades open independently up to 270 degrees BulletPoint8 : Product 2: Hex-key ends are square-cut for a secure, full-depth fit and maximum contact with the socket to prevent slippage and stripping Color : Multi CustomerPackageType : Standard Packaging ExternallyAssignedProductIdentifier1 : 662679978273 ExternallyAssignedProductIdentifier2 : 0662679978273 ExternallyAssignedProductIdentifier3 : 00662679978273 FinishType : Brushed GpsrSafetyAttestation : 1 IncludedComponents : Martin - Wr 1-1/16 Ang 30 Deg (1234) IncludedComponents1 : 1/4" Drive Crowfoot Wrench 7/16" - Open End IncludedComponents2 : 1/4" Drive Crowfoot Wrench 7/16" - Open End IncludedComponents3 : 1/4" Drive Crowfoot Wrench 7/16" - Open End IncludedComponents4 : 1/4" Drive Crowfoot Wrench 7/16" - Open End IncludedComponents5 : 1/4" Drive Crowfoot Wrench 7/16" - Open End ItemDisplayDimensions_Height : 8.25 inches ItemDisplayDimensions_Length : 3.75 inches ItemDisplayDimensions_Width : 9.5 inches ItemDisplayWeight : 0.35 pounds ItemLength : 6.875 inches ItemName : HARFINGTON 2pcs Drive Crowfoot Wrench 3/8" Drive 5/16" SAE Fractional Crowfoot Flare Nut Wrench 40Cr Chrome Plated Open End Crowfoot Wrench for Mechanics Automotive Repair Work ItemPackageDimensions_Height : 0.47 inches ItemPackageDimensions_Length : 5.51 inches ItemPackageDimensions_Width : 3.94 inches ItemPackageQuantity : 1 ItemShape : Rectangular ItemTorque : 100 newton_meters ItemTypeKeyword : open-end-wrenches Manufacturer : HARFINGTON Material : Premium Chrome Vanadium Alloy Steel (CR-V), S2 Alloy Steel Material1 : Blend Material2 : Blend Material3 : Blend Material4 : Blend Material5 : Blend MeasurementSystem : inch ModelName : J4714CF ModelNumber : J4714CF NumberOfItems : 1 NumberOfPockets : 2 OperationMode : Mechanical PackageLevel : unit PartNumber : htf240704hh000792 Pattern : Solid ProductDescription : The flare nut crowfoot wrench is made of the preferred 40Cr steel, which has high hardness, strength and good wear resistance, able to withstand greater torque and pressure without deformation or damage. It adopts a surface treatment of chrome plating, with a smooth and flat surface without burrs, enhancement rust and corrosion resistance, strong and durable, suitable for various working environments. Rounded head design of the open-end wrench eliminates any stripping or splitting of the wrench and ensures a snug fit on fasteners, helping to get the job done efficiently. The corresponding size is engraved on each wrench in clear fonts for easy identification. Widely used for hard-to-reach fasteners that ordinary open-end wrenches cannot reach, they are connected to drive ratchets, extension rods or torque wrenches and are suitable for work in tight spaces, such as narrow engine areas in cars, mechanical equipment, and hard-to-reach areas under sinks. To achieve better working results, please select a crowfoot wrench of the corresponding size and ensure that the set matches the tool. Install the selected crowfoot wrench head correctly on the wrench handle and ensure that it is firmly installed to avoid loosening or falling off during use. Maintain a stable connection between the crowfoot wrench and the workpiece during use to avoid slipping or deflection that may cause damage.