1[Tap Socket Set] This adjustable tap socket set is suitable for narrow workshops and confined areas, allowing for quick and easy completion of tasks. 2[Secure Grip] The adjustable jaw can securely grip the tap, preventing slipping and ensuring stable operations in small spaces. 3[Compatible Design] Designed for 3/8in square drive wrenches, this socket set is compatible with any 3/8 inch drive manual or power tool, versatile and convenient. 4[Multi Purpose Use] This tool can be used with existing wrenches and is designed for taps, reamers, screw extractors, and other square shank tools. 5[Wide Application] Suitable for engineers, construction workers, and maintenance professionals, assisting in threading, tapping, and screw extraction tasks with ease. Item Type: Adjustable Tap Socket Set Material: Clamp: 45# steel, Main Body: 42CR-MO Specification: #6-1/4in 1/4-1/2in Drive: 3/8in square Application Range: (M3 to M12) small size for M3-M6 taps, large size for M8-M12 taps Use: Mainly used for 3/8in wrench, for use with hand electric drills need to be equipped with an adapter 2 x Adjustable Tap Socket 1 x 3/8in Adapter