1.[ High-Performance ] ① - The bits are made from high-density chrome vanadium steel which is extremely hard, wear-resistant, and durable. ② - Repair Kit Each kit can be adsorbed onto the handle and you no longer have to worry about falling off. ③ - Non-slip surface thread, the tail bearing design to help you loosen the tightest screws. ④ - Two-handle covers are removable and screws can be placed inside to facilitate work. 2.[Convenient Design] The ratchet screwdriver handle can rotate 180 °. This extra tree can help you work in hard-to-reach areas where the magnetic tip can attract lost mini-screws with magnetic attraction. The screwdriver tool is mounted in a small box. 3.[Precision Bit Set] Precision Screwdriver Bit Sets include Hex / Torx / Flathead / Phillips / Pozi / Tri-Point / Tri-wing / Triangle / U-Shaped / Square wrench set in a 12mm screwdriver set. 61 pieces. It is a multi-function tool, 48 bits can be easily replaced, suitable for home maintenance of small products. This handy screwdriver set is a good choice for both professionals and amateurs. 4.[] Compact and portable professional hardware tools in a small carrying case keep everything neat and organized. Each part is commonly used in the repair or assembly of appliances, so it works well and adapts perfectly to your needs. It allows you to choose the right screwdrivers to handle different situations. All parts are stored in a portable carrying case that provides quick access.