The DSV6K66 impact screwdriver bits are a specific product model manufactured by the company Jadever, designed for use with impact drivers. 
Key Product Information
Model Number: JDSV6K66.
Type: Impact screwdriver bits.
Tip Size: PH2 (Phillips #2).
Length: 250mm.
Material: Made from S2 industrial steel, known for its durability and resistance to wear.
Features:
Optimized "Shock Zone" to reduce tip breakages by absorbing torque peaks.
Black surface with a magnet.
High visibility sleeve.
Packed as a set of two pieces (2pcs/set).