Use electric drills appropriate for the core drill used.

Check that the main switch of the drill is turned off and make sure to take out the power supply plug from the socket before attaching to and detaching from the motor.

Product main body, swarf and drilling surface are hot due to friction in drilling. Never touch them with bare hands.

Wear work clothes suitable for operation. In particular, wear protective glasses to prevent shavings from getting into your eyes.

Prepare the working environment before starting a job.

Carefully read the instruction manual for the motor used before use.