Feature:1. Specification and Use: Provides 6-1/4 inch and 1/4-1/2 inch adjustable tap sockets, the small size for M3-M6 taps, large size for M8-M12 taps; Suitable for narrow workshops and areas with limited space2. Adjustable Jaws: Featuring adjustable jaws design, this tap socket can firmly grip the tap, prevent slipping, and ensure stable operating even in narrow spaces, providing convenience and ease of use3. Square Adapter: Provide a 3/8 inch square drive adapter that offers flexibility and convenience, compatible with any 3/8 inch drive hand or power tool, providing versatility and ease of use in various applications4. Wide Application: This tap socket set can be applied in conjunction with existing wrench and is specifically designed for tapping, reaming, screw extraction tasks, and thread machining, maximizing efficiency5. Sturdy and Practical: These tap sockets are made of cr molybdenum steel, has high strength, wear and erosion resisting, suitable for various scenes, including engineers, construction workers, repairmen, etcSpecification:Item Type: Tap Socket SetMaterial: Cr Molybdenum SteelSpecification: 6-1/4 Inch, 1/4-1/2 InchDrive: 3/8 Inch SquareApplication: Small size for M3-M6 taps, large size for M8-M12 taps.Package List:2 x Tap Sockets1 x Square Adapter1 x Plastic Box