About this item Common sizes: Includes metric (3-12mm) and SAE (1/8”-3/8”) sizes, covering a wide range of automotive, mechanical, and household repair needs. Ideal for both professionals and DIY enthusiasts. Premium Materials: This allen socket set made of S2 alloy steel, heat treatment after forging, high hardness, strong torque. After plating and polishing to provide superior rust resistance. Each sleeve has a precise size and bevel for easy use to protect bits and fasteners Clear graduations: The die-stamped size markings are clear, durable, and easily visible, making it a breeze to find the right size. And with extra-long allen bits, you'll be able to access hard-to-reach areas quickly and easily, making your work more efficient and saving time Versatile Usage: Hex socket set ideal for integration with electric drills, ratchet wrenches, and more. Perfect for mechanical maintenance, DIY projects, and even electrician tasks. Makes your screwdriver and torque applications a breeze. Slotted Storage Box: Allen hex bit sockets are all placed in a storage box, easy to access at any time. If you encounter any problems while using our products. Please contact us by email, our professional after-sales team will contact you and solve your problems in time. Overview Brand: RDTRDT Item Length: 4.4 inches Material: S2 Alloy Steel Finish Type: Polished Number of Pieces: 19