Safety method and handheld power tool

A hand-held power tool comprising:

• a tool holder for holding a tool on a working axis;
• a motor for rotationally driving the tool holder about the working axis;
• a power-tool housing, the motor being situated in the power-tool housing;
• a handle fastened on the power-tool housing for guiding the hand-held power tool during operation;
• a rotary motion sensor detecting a rotary motion of the power-tool housing about the working axis;
• a monitor ascertaining a holding force of the user based on an amplitude of the rotary motion in a frequency range between 0.4 Hz and 4 Hz, and a safety device reducing a torque output to the tool holder when the detected rotary motion exceeds the limiting value, the limiting value being set as a function of the holding force.

A control method for a hand-held power tool including a tool holder rotationally driven about a working axis and a handle fastened on a power-tool housing for guiding the hand-held power tool during operation, the control method comprising the steps of:

• detecting a rotary motion of the power-tool housing about the working axis with the aid of a rotary motion sensor;
• ascertaining a holding force of the user based on an amplitude of the rotary motion in a frequency range between 0.4 Hz and 4 Hz with the aid of a monitor;
• and
• reducing a torque output of the tool holder when the detected rotary motion exceeds a limiting value, the limiting value being set as a function of the holding force.