Grass trimmer

A string trimmer, comprising:

• a string trimmer head;
• a drive device comprising a motor for driving the string trimmer head to rotate about a first axis;
• an operating device comprising a first housing for connecting a power supply device to supply power to the motor;
• and
• a connecting device for connecting the drive device to the operating device;
• wherein the first housing is formed with a coupling portion for coupling the power supply device and a connecting portion connected to the connecting device;
• an air inlet is further provided between the coupling portion and the connecting portion;
• and the air inlet communicates with an inside of the first housing.

A string trimmer, comprising:

• a string trimmer head;
• a drive device comprising a motor for driving the string trimmer head to rotate about a first axis;
• an operating device comprising a first housing for connecting a power supply device to supply power to the motor;
• and
• a connecting device for connecting the drive device to the operating device;
• wherein the first housing is formed with an arm rest portion for an arm to rest on, a coupling portion for coupling the power supply device, and a connecting portion connected to the connecting device, and the arm rest portion is disposed behind the connecting portion, provided with a pad covering at least part of the arm rest portion, and configured to be squeezable by the arm when the string trimmer is operated.