Amazon has posted a limited-time half-price deal for a comprehensive precision electric screwdriver plus tools, which packs away into a slim book-like hard case. The TanSon Precision Electric Screwdriver 71-in-1 cordless rechargeable 3.7V portable repair tool set has been slashed from $99.99 to $49.99 for Prime Day . I've just been using a similar non-powered multi-bit tool set for a laptop screen replacement job today, and wished I had an electric version to save some time. Also, I had just one pry tool, so I am eyeing this comprehensive all-in-one selection with some envy. Check out this deal on Amazon Inside a 110° retractable flip-top workbench case, you get a whole host of tools and repair accessories. Central to the product is the electric screwdriver itself. This is a cordless unit with a 500mAh battery inside, which you recharge via USB-C. Its knurled aluminum frame includes a display to show stats like battery remaining and torque settings.…