1,Plastic and Steel Material: Crafted with premium plastic and steel alloy hex heads, this flexible shaft extension bit ensures high accuracy and reliable, efficient usage. 2,Flexible Design: This flexible drill bit extension kit is compatible with regular hand drills and power drills, offering exceptional performance. It can easily bend, twist, and rotate to touch narrow and confined spaces. 3,1/4 Inch Connector: The hex handle drill bit features a 6.35mm (1/4 inch) connector, while the internal hex head connector comes in a 6.35mm (3/4 inch) size, easy to install and replace. 4,Easy to Use: With universal adaptability, the screwdriver soft shafts allow you to effortlessly access challenging areas and complete tasks quickly and easily. Its compact size makes it convenient to store in a toolbox or pocket. 5,Wide Applications: Specifically designed for narrow spaces, the flexible drill bit extension is perfect for tasks involving computer cases, electrical cabinets, furniture, appliances, and more. Item Type: Flexible Drill Bit Extension Material: Plastic, Steel Weight: Approx. 290.00g/10.23oz Color: Black Length: Approx. 295mm/11.6in 4 x Flexible Drill Bit Extensions Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.