FEATURES: Compact container for easy storage. Hinged lid design for increased durability. S2 modified bits for increased. Heat treated to resist breakage and wear. Shock resistant tool steel for maximum durability. Hardened core for extra strength and reduced breakage. APPLICATIONS: For driving screws in a variety of different materials | Screw type: 2, 3, 4 | Window Framing and Installation | Deck Building and Framing | Drywall Hanging | Cabinet Installation.