General description Magnetic Screwdriver Bit Holder set includes 4 essential tools designed for use with pneumatic screwdrivers, electric screwdrivers, air drills, and hand screwdrivers. The 105-degree angle extension allows access to hard-to-reach areas, making it a versatile addition to your toolkit. Technical specifications Hex Shank Diameter: 6.35mm (1/4") Flexible Shaft Length: 29cm (11.42") Extension Bar Lengths: 60mm, 100mm, 150mm Weight: 60mm (25g), 100mm (32g), 150mm (40g), Black/Silver (95g), Total (150g) Material: Chrome Vanadium Steel (CR-V) and Plastic PVC Specifications: 1/2" (12.7mm), 3/8" (9.5mm), 1/4" (6.35mm) Compatibility and accessories Compatible with electric drills, pneumatic screwdrivers, and hand screwdrivers Includes 3 magnetic screwdriver bits and a right angle drill bit Connects to standard 1/4" hex bits Universal socket size: 7-19 mm Installation Flexible shaft head can be installed with a hex handle (1/4 hex handle) Connects easily to electric drills,