3/8 Impact Adapter, 10 Pack 3/8 Socket Adapter 1/4 Inch To 3/8 Socket Adapter The 3/8 socket adapters are made of heat-treated chrome-vanadium steel(CR-V) is also a common material used for sleeves at present. Compared with high-speed steel, it has better wear resistance and toughness, and can perform better in work. With a blackened surface, which not only looks beautiful, but also improves the rust resistance and prolongs service life of the Impact Grade Socket Adapter Set. Product Features The 3/8 impact adapter can convert the original hexagonal polygon size to square head size, which can be used to install sockets; it is a good conversion accessory, which improves work efficiency or even more convenient. The 3/8 socket adapters are made of heat-treated chrome-vanadium steel(CR-V) is also a common material used for sleeves at present. Compared with high-speed steel, it has better wear resistance and toughness, and can perform better in work. With a blackened surface, which not only looks beautiful, but also improves the rust resistance and prolongs service life of the Impact Grade Socket Adapter Set. The size of the square tip is about 10 mm/ 3/8 inch, and the size of the hexagonal handle is about 6.3 mm/ 1/4 inch. Each square head of the 3/8 socket adapter has a spring ball bearing part, which can effectively fix the socket and avoid sliding. This socket adapter is specially designed and used for manual drive applications or with power tools when used with plug-in shanks. Allows using the handle nut driver with ease. 1/4 Inch Hex Impact Socket for Automotive DIY, Extension Socket Driver Bits, handle nut driver and Drills. What You Get: Mellbree 3/8 impact adapter, If there is any dissatisfaction with the product, or the parts are missing, please contact us at any time. Shipping: Shipping is complimentary within the lower 48 US States. We Do Not Ship to PO/APO Boxes, HI or Alaska We Do Not Ship Outside of the Continental US All items ship within 24-72 hours of Payment For large items that require Freight shipping a valid phone number is required to call and schedule your delivery Terms of Sale and Feedback: Feedback is extremely important to us and If you are satisfied with our transaction, please take a moment to leave Positive Feedback. YOUR Satisfaction is our #1 Priority! If there are any issues, PLEASE contact us BEFORE leaving a neutral or negative rating so that we may resolve any concerns. We PROMISE we can make you happy if you give us a fair chance. Returns / Concerns: All items qualify for returns within 14 - 30 days of receipt. Buyer is responsible for return shipping on any item that is not damaged Please be sure this is an item you want before making your purchase. Customer Satisfaction is our TOP priority! All items are IN STOCK at time of listing. Inventory changes constantly and it is impossible to maintain a perfectly accurate count of all items. Please do not penalize us if we have to issue you a refund! Thank You For Your Business!