General description This DeWalt DT60099 5 Piece Extreme Impact Multi Purpose Drill Bit Set is designed for fast and efficient drilling into a variety of materials. Featuring a carbide tip and an innovative flute design, these bits ensure quick material removal and are ideal for use in construction, joinery, and maintenance applications. Technical specifications Material: Hardmetal Diameters: 4 mm, 5 mm, 5.5 mm, 6 mm, 8 mm Length: 152 mm Working length: 100 mm Hex shank size: 6.35 mm (1/4 inch) Compatibility and accessories Compatible with impact drivers and hammer drills that accept 1/4 inch hex shank bits Installation Insert the drill bit into the impact driver or hammer drill's chuck, ensuring it is securely fitted before use Usage Use for drilling into concrete, brick, wood, and masonry surfaces Suitable for various DIY and home improvement projects