Product Details:

Fully automatic piston return and cartridge advance system gives you a higher marking rate without manually cycling the tool
Total mobility and complete independence from electrical power supplies
Marks up to 10 characters in any combination of letters and numbers
Ideal for marking hot and cold castings in a wide variety of shapes and sizes, and any items normally marked using a hammer and punch

Power Source: Hilti .27 caliber short in plastic strips of 10

Hilti PN: 376373

Package Includes:
Tool with steel marking head in an impact resistant plastic tool box