Features: Usage: suitable for screwdriver handle or electric screwdriver tool (three-jaw chucks) to drive the sleeve. After installation, the joint can be converted into a square for head, which can be used for the installation of the sleeve. A powerful tool for conversion . Hexagonal connecting rod converters drill chucks,M14 polishing disc connecting rod power tool accessories. Quality Material: Craft of quality metal , stable, firm and durability. Light weight Size:Small size, easy to store and carry, bring you convenience. Scope of Application: It can be used for installation on tool with shapes such as pneumatics screwdriver, electric screwdriver, air drills, electric drills, and manual screwdriver. Specifications: Material: Carbon Steel Color: As the Picture Shows Product Dimension: approx. 6.2x45x28x14mm/0.24x1.77x1.10x0.55lbs Net Weight: 25g/0.06lbs Package Includes: 1xM14 Hexagonal Drill Convertion note: Please allow 1-2cm errors due to manual measurement. Due to the differences between different monitors, the picture may not reflect the actual item color.