What Is Grind Mode on a Welding Helmet? | WelditU
A small button, knob, or switch on the inside of the helmet activates the mode to grind on some models. This is the most inconvenient placement of the control. You'll need to tilt the hood up a bit, remove a glove, reach your hand up in front of your face and find the small switch while being careful not to disturb other important settings.