Features 【PROTECTING OTHER COMPONENTS OF MECHANICAL EQUIPMENT】The universal flexible shaft can absorb vibration and impact force to a certain extent, maintaining the safety of fasteners and drill bits during driving. 【INSTALLATION SIZE】Diameter: 6.35mm (1/4 "), suitable for installing hexagonal screwdrivers or cordless drill handles, with a flexible outer cover to protect your hands when rotating the inner shaft. 【BENDING AND ROTATION】The flexible shaft extension drill bit holder is very flexible and can be bent to 300 degrees. The hose can rotate in different directions, transmitting torque and speed. 【REACHING NARROW SPACE】Bending, twisting, and turning, universal flexible shaft can help users use drill bits in narrow and limited spaces. Professional handling of corners that ordinary screwdrivers cannot reach. 【WIDELY USED】The drill bit holder can be connected to electric drills, rechargeable electric drills or manual wrenches, manual screwdrivers, and electric screwdrivers (low speed）. Description: The flexible shaft can be used for ordinary cordless drills and electric screwdrivers. The flexible shaft head can be installed with a hexagonal handle (1/4 handle) screwdriver. It is mainly used in computer cases, electrical cabinets, furniture, appliances and other narrow spaces where the screwdriver cannot work properly. Feature: Rugged-Metal material, flip-out shield protects your hands while rotating inside the shaft. Specifications for use-Install hex screwdriver or cordless drill rod diameter: 6.35mm (1/4 "). Flexible to use-The shaft is very flexible and can be bent up to 300 degrees. Safe and reliable-Bit holders keep fasteners and bits safe while driving. Easy to use-Bend, twist and turn to use drills in narrow and confined spaces. Specifications: Material: Metal Hex Shank: 6.35mm (1/4") Inner Hexagonal Head: 6.35mm (1/4") Total Length:  400mm / 15.74"(Optional) Quantity: 1 Weight: Approx. 129g(400mm) Package Includes : 1 x Flexible Shaft Extension Bit Holder Note: 1. Please allow 1-m error due to manual measurement. Thanks for your understanding. 2. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard. Package List