General description Magnetic bit holder extension set includes three pieces of hexagonal shank extensions, perfect for drilling and impact drivers as well as daily maintenance tasks. Ideal for both professionals and DIY enthusiasts. Technical specifications Quantity: 3 pieces Sizes: 1/4" (6.35 mm) × 60 mm Sizes: 1/4" (6.35 mm) × 100 mm Sizes: 1/4" (6.35 mm) × 150 mm Compatibility and accessories Compatible with electric screwdrivers Compatible with impact wrenches Compatible with pneumatic tool sets Compatible with electric hand drills Compatible with rechargeable drills Usage Used to extend the connection for screwdrivers and other tools in challenging work environments Enhances reach and leverage for better performance