1、21-piece set includes 2 * bendable drill bit extensions, 1 * 105° angle bit extension, 3 universal socket adapters(1/2", 3/8", 1/4"), 3 * drill bit holders, 1 * 10pcs screwdriver bit kit, 1 * socket grip and 1 * wrench power drill adapter.<br> 2、105° angle bit extension can be attached to electric drills, cordless drills or hand wrenches, allowing them to extend into inaccessible stenosis for twisting screws, nuts and more.<br> 3、1/2", 3/8", 1/4" universal socket adapters can be used on electric screwdrivers, pneumatic screwdrivers, pneumatic drills, manual screwdrivers and other installation for the hexagonal tools.<br> 4、Bendable drill bit expansion can be twisted and rotated at different angles. It can drill into small spaces and various crevices without requiring you to manually perform flexible installation works.<br> 5、This kit is compatible with small wrenches, cordless screwdrivers, low - speed hand drills, pneumatic screwdrivers, torque drills, electric screwdrivers, and is mainly used in computers chassis, electrical cabinets, furniture, appliances, other narrow space screwdrivers, etc.<br> 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. Sold by-DIMEANI official store