Parts List: 10 x Impact Adapter Set OR 20 x Impact Adapter Set Highlight description: 1/2 inch Impact Adapter Set: The 1/2inch impact adapter converts the original hexagonal polygon size to a square head size, which can be used to install sockets; it is an ideal conversion accessory to help you increase your work efficiency High Hardness & Enduring: 1/2inch socket adapter is made of heat-treated chrome vanadium steel (CR-V), wear resistance and has good toughness. The blackened surface is not only aesthetically pleasing, but also extends the life of the impact rated socket adapter kit Firmly Fixed Socket: The square tip measures approximately 12.7mm (1/2 inch), while the hexagonal handle measures approximately 6.3mm (1/4 inch).Each square tip of the 1/2inch socket adapter has a spring loaded ball bearing section that effectively fixes the socket to avoid slipping Widely Used: The 1/2inch socket adapter is specifically designed for use in manual drive applications or with power tools when used with plug-in shanks. Allows easy use of the handle nut driver. For automotive DIY 1/4 inch hex impact sockets, extended socket screwdriver bits, handle nut drivers and drills Enough Quantity: The kit includes 10 or 20 impact adapters, providing enough to meet daily needs and replacement requirements Detailed description: Description The 3/8inch impact adapter is the ideal conversion accessory to convert the original hexagonal polygon size to a square head size. The socket adapter has high strength and abrasion resistance for long term use. Key Features Special Design: Each square head of the socket adapter has a very special design part, a spring loaded ball bearing, which effectively holds the socket in place and prevents it from slipping. Good for Conversion: Converts the original hexagonal polygon size to square head size, which can be used for installing sockets, and is a good accessory for conversion. Specification: Product Name: Impact Adapter Set Material: chrome vanadium steel Color: black Size: 1/2inch (1/4inch shank converts to 12.7mm square head) Size: 50mm long Scope of application: automobile repair, household Applicable scenes: socket conversion Note: 1. There may be slight differences between the picture and the actual color of the commodity. We will try our best to show you the exact color. 2. Please allow slight dimension difference due to manual measurement. Firmly Fixed Socket: The square tip measures approximately 12.7mm (1/2 inch), while the hexagonal handle measures approximately 6.3mm (1/4 inch).Each square tip of the 1/2inch socket adapter has a spring loaded ball bearing section that effectively fixes the socket to avoid slipping 1/2 inch Impact Adapter Set: The 1/2inch impact adapter converts the original hexagonal polygon size to a square head size, which can be used to install sockets; it is an ideal conversion accessory to help you increase your work efficiency High Hardness & Enduring: 1/2inch socket adapter is made of heat-treated chrome vanadium steel (CR-V), wear resistance and has good toughness. The blackened surface is not only aesthetically pleasing, but also extends the life of the impact rated socket adapter kit Widely Used: The 1/2inch socket adapter is specifically designed for use in manual drive applications or with power tools when used with plug-in shanks. Allows easy use of the handle nut driver. For automotive DIY 1/4 inch hex impact sockets, extended socket screwdriver bits, handle nut drivers and drills Enough Quantity: The kit includes 10 or 20 impact adapters, providing enough to meet daily needs and replacement requirements