Startech.com 20 Bit Electric Ptrecision Screwdriver SetThis cord less screwdriver is the ideal tool to dismantle and reassemble electronic devices during repairs. The battery powered driver set includes a precision electric screwdriver (2 x AAA batteries included), 20 micro bits, and a magnetizer demagnetizer, housed in a durable soft carrying case. The bits included have been specially selected for compatibility with most major brands of smartphones, tablets and laptops including but not limited to Apple