Features: Flexible: The Universal Shaft Extension can be bent to rotate a variety of angles and can be used in a variety of cracks and corners. Material: Made of chrome steel, it makes the flexible drill bit set more durable and wear-resistant. Applications: The flexible extension drill bit can be used for computer cases, electrical cabinets, furniture , electrical appliances, etc. Elastic: With super elastic and flexible bending, they can be immediately rebounded after deformation. Sizes: 1/4 inch, 3/8 inch and 1/2 inch. 3 sizes can be used for your work needs. Features: Material: Chrome Steel Color: Silver Size of the Package: 25 * 5 * 3cm / 9.8 * 2 * 1.2in Package Weight: 545g / 1.2lbs Package List: 3 * Flexible Extension Drill Bit