I am super pleased with the addition of the Craftsman Bolt-On 20 volt max Lithium Ion Drill/Driver. The battery is solid and holds a charge longer than any other drill/driver I have owned with a removable and rechargeable battery. In addition to holding a charge, the battery fits in the base of my Craftsman Bolt-On 20V Lithium Ion Drill/Driver securely and does not occasionally slip off like other brands. I am able to use a variety of different pit types and bit sizes as attachments to my Craftsman Bolt-On 20 volt Max Lithium Ion Drill/Driver. I have been able to complete countless at home projects and improvements that I was unable to do prior to having the Craftsman Bolt-On 20 volt max lithium ion driver/driller in my tool arsenal. It is not a super heavy drill therefore I am able to use it on most projects, regardless of the awkward angle or working conditions I am trying to get work completed in.