Walter Surface Technologies ICECUT100 Manuel D'utilisation page 11

Green Zone
Good! Try to keep the level in the
green zone for the best cutting and
optimum machine performance.
Yellow Zone
Indicates there is too much
pressure on the drill. Ease off to
get back to the green zone.
11
Red Zone
Overload: Back off immediately as
continuing to apply too much force will
cause the motor to cut off.