Specification Brand : OIIKI BulletPoint1 : Function: This impact driver power bits is specially designed and used for manual drive applications or with power tools when used with plug-in shanks BulletPoint2 : Package Includes: You will receive 3 packs square socket adapter bit setm which contain 3 sizes. The size is 0.5x2.87x0.25 in, 0.38x2.57x0.25 in and 0.25x2.56x0.25 in. It should be reminded that please pay attention to check the size before purchasing, so as not to inconvenience you BulletPoint3 : Reliable Quality: This socket adapter is made of premium hardened and treated HSS, which has great strength and endurance, which has a long lifetime. You don't need to worry about the quality at all, you can buy it back and use it with confidence BulletPoint4 : Special Design: This socket adapter has a very special design section on each square head. There are spring-loaded ball bearings in order to effectively secure the socket and avoid sliding, allowing you to work efficiently and with peace of mind BulletPoint5 : Double Size Conversion: The original hexagonal polygon size is converted to a square head size, which can be used to mount the sleeve as a good accessory for conversion BulletPoint6 : Made in USA BulletPoint7 : Socket Well Depth: 0.54 inches Color : Multi CompatibleFastenerDescription : 0.5 inches DriveSystem : Square ExternallyAssignedProductIdentifier : 4953488302578 ExternallyAssignedProductIdentifier1 : 0746131477419 ExternallyAssignedProductIdentifier2 : 746131477419 ExternallyAssignedProductIdentifier3 : 3148510289007 FinishType : Painted GpsrSafetyAttestation : 1 IncludedComponents1 : 2-pc 1/2 in. drive 18. inch socket rail IncludedComponents2 : 18 inch 2-rail tray ItemDisplayWeight : 0.34 kilograms ItemLength : 2.36 inches ItemName : OIIKI 3 Pack 1/2, 3/8, 1/4 inch Square Socket Adapter Bit Set, Impact Driver Power Bits for Automotive DIY-1/4 Hex Shank - 3 Sizes ItemPackageDimensions_Height : 1.4 centimeters ItemPackageDimensions_Length : 11 centimeters ItemPackageDimensions_Width : 16 centimeters ItemPackageQuantity : 1 ItemTypeKeyword : square-drive-sockets Manufacturer : OIIKI Material : Alloy Steel Material1 : Blend Material2 : Blend Material3 : Blend Material4 : Blend Material5 : Blend MeasurementSystem : Metric ModelName : Square Socket Adapter Bit Set ModelNumber : OK2401562T8-M NumberOfBoxes : 1 NumberOfItems : 1 NumberOfPieces : 3 PackageLevel : unit PartNumber : 05003837001 Pattern : 3 Pack 1/2, 3/8, 1/4 inch PowerSourceType : hand_powered ProductDescription : Product Description: It should be reminded that if you have anything concerned with the Socket Adapter Bit Set after use, please first choose consult us and we will take care of it for you. Specification: Size: 0.5x2.87x0.25 in, 0.38x2.57x0.25 in and 0.25x2.56x0.25 in