Klein Tools’ All-in-1 Precision Screwdriver Set with compact carrying case features 39 precision bits. This set provides everything you need to work with electronics and precision fasteners including those for Apple® products such as Apple® iPhone, MacBook, and Watch. The reversible barrel is standard on one side and extra-long on the other for those hard-to-reach jobs. Powerful magnets housed in the barrel better secure the bit, which also allows it to easily pick-up and retain fasteners. The Cushion-Grip™ handle and spin cap provide outstanding comfort and control.