This 32 piece magnetic screwdriver and bit set is designed to be a do it all set, so it contains all of the commonly used bits for nearly all industries to ensure you'll have the right tool available whether you're working in automotive, electronics, or home improvement. All bits are made from S2 Tool Steel with proprietary heat treat for superior strength and durability, all bits have a precision tip profile for positive and precise fastener engagement. Precision bits are designed to get the job done, no matter how small or precise. Screwdriver handle includes bit storage and a strong magnetic tip, a standalone bit holder is also included. Sizes includes Phillips #0, #1, #2 (3 bits), and #3; Slot 3-4, 5-6, 6-8, 8-10, 10-12 and 12-14; Torx T6, T7, T8, T10, T15, T20, T27; SAE Hex 5/64, 3/32, 7/64, 1/8, 9/64, 5/32, and 3/16; Square Recess #1, #2, #3; Clutch 5/32 and 3/16; 1/4 sq to hex adapter.