Features: The set comes with a unique design to improve grip and control while working, easy to use. These screwdriver bit are crafted from standard with excellent ruggedness and durability, which can easily withstands high-pressure impacts. The whole set is to improve work efficiency, which can accomplish tasks quickly and precisely, thus saving time and energy. The set includes various size of screwdriver bit, which can meet different work requirements, bringing you a more enjoyable using experience. Whether you are assembling furniture, working on automotive repairs, or tackling home improvement projects, this set's included bit holder and variety of size cater to a multitudes of tasks. Specifications: Material:Stainless Steel Bit Size:10，15，T20，T25，T30，T40，3，4，H5，H6，PH1，PH1，2,2，PH3,3，3，SL4，SL5，SL6 Extension Handle Length:75mm/2.95'' Package Includes: 20Pcs Bit 1Piece Extension Handle note: Please allow 1mm errors due to manual measurement. Due to the differences between different monitors, the picture may not reflect the actual color.