General description These 8 pieces of 1/4", 3/8", and 1/2" magnetic bit holder extensions are simple, practical, and easy to use. They are ideal for drills and impact drivers, making them perfect for daily repairs. Suitable for both professionals and DIY enthusiasts, these holders are essential accessories for electric screwdrivers, pneumatic screwdrivers, drills, and other power tools. Technical specifications Material: CRV Shank Diameter: 1/4" (6.35mm), 3/8" (9.53mm), 1/2" (12.7mm) Other information Package Contents: 8 x Magnetic Screwdriver Bit Holders Assortment