Purchased online, only checked the contents, and is unused. The S2 steel forged impact drill bit has high hardness, is resistant to knocking, has strong toughness, and strong impact ability, making it a good helper for maintenance work. · The surface of the driver head is coated with black manganese phosphate, which has excellent corrosion resistance and rust prevention, extending its life. Various colors are also available to easily distinguish specifications. · Assemble the impact driver and hit the body with a hammer according to the screw you want to remove. The strong impact is converted into rotational force, making it possible to remove stuck screws. · The textured knurled handle design provides a non-slip effect, suitable for workshop workers. · Easy to carry: The screwdriver set is compact and lightweight, with a variety of specifications to choose from, making it easy to carry and store. All bits are organized in a sturdy storage box. Accessories 1 x Impact Driver Handle 4 x Slotted Screwdriver Bits (Orange): SL5 SL6 SL8 SL10 4 x Phillips Screwdriver Bits (Blue): PH1 PH2 PH3 PH4 2 x Hex Screwdriver Bits 2 x Torx Screwdriver Bits