PACKAGE CONTENTS: Includes 2 1/2 square to 1/4 hex socket adapters, enough for daily use. HIGH QUALITY MATERIAL: The impact wrench adapter is made of high quality chrome vanadium steel, with oxide skin treatment to improve surface oxidation resistance, anti-corrosion and anti-rust, high hardness, strong impact resistance, and can be used for a long time. SECURE DESIGN: The adapter kit is designed to provide a secure locking system for existing tools and provide extra length to reach a variety of hard-to-reach spaces. Specially machined to securely mount hand screwdrivers, drills, or impact wrenches. EASY INSTALLATION: The impact adapter is easy to install and can be done in a minute without any other tools. The hex head adapter securely attaches to any 1/4" hex shank bit such as blade bits, screwdrivers, electric wrenches, ratchet wrenches, impact wrenches, etc. APPLICATION: The quick release converter can easily replace the drill bit and socket, with stable clamping force, easy operation, and can be used with power tools. For opening glass, tiles, ceramics, and other hand drill products. Ideal for mechanics, engineers, carpenters, or DIY enthusiasts. Hand drill adapter kit for glass, tiles, ceramics, and other special products, perfect for machinists, engineers, carpenters, or DIY enthusiasts. Features: High strength, good durability, high impact resistance, easy to use. Installation is very simple, and no additional tools are required. Remove First the self-locking head, insert the required drill bit, release it, and the self-locking sleeve will return to its original position for use. 1/4" or 1/2" square hexagon, suitable for electric wrenches, pneumatic wrench series, widely used Convert a pneumatic or electric screwdriver into a drill or ratchet wrench with this chuck converter Specification: Material: Chrome Vanadium Steel Color: Black Size: Top Diameter: 1.8cm Bottom Diameter: 2.3cm Length: 5cm Quantity: 2 Packing List: 2 X Socket Adapters