A professional who tends equipment that etches trade name on razor blades. Respnsibilities include:

• Positions roll of blade steel on etching machine reel and threads steel through feed and etching rollers to cutting die.
• Fills acid and water fountains that feed etching rollers and wash acid from steel after etching.
• Lights gas burner in drying chamber and starts machine.
• Observes discharge of blades into hopper, and stops machine when hopper is full.