This means that the bit is used for driving Pozidriv PZ1 screws in the contexts specified by the manufacturer

Skruetrækkeren er designet som en klassisk slidsprofil med en elektrikerklinge

This chisel soldering tip from Weller

Standards: MIL‑SPEC / IPC (stated by manufacturer)

Bøsning universal XUB-G sort 600-1000V CAT II - 20A MIL57982101111 This means that the bit. Insulated, rigid, 4 mm, accepting spring loaded 4 mm plugs with rigid insulating sleeve. Machined brass. The socket is surface mounted, assembled flush, or pressed into pre drilled panels of plastic, metal, etc. Threaded bolt M4. Optional: Protective cap SD XUB to cover up unplugged, unused sockets (Protection degree IP67).