Dewalt D21007 3/8 Inch 5.0 AMP VSR Drill The 5.0 amp motor offers the user superior power and durability 3/8 in. keyless chuck offers greater bit retention All ball-bearing construction provides greater durability and longer tool life Contoured textured handle provides better gripping surface and reduces user fatigue Glass-filled nylon housing is durable, impact-resistant and provides lower maintenance cost