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 space 2. 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 use 3. 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 applications 4. 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 efficiency 5. 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, etc Specification: Item Type: Tap Socket Set Material: Cr Molybdenum Steel Specification: 6-1/4 Inch, 1/4-1/2 Inch Drive: 3/8 Inch Square Application: Small size for M3-M6 taps, large size for M8-M12 taps. Package List: 2 x Tap Sockets 1 x Square Adapter 1 x Plastic Box