US Patent 11389940 Handheld power tool including a spindle locking device

A handheld power tool including a tool housing, in which a drive motor for driving a drive spindle is situated, the drive spindle being assigned a tool holder for accommodating an insertion tool and the drive spindle being assigned a spindle locking device which is designed to prevent the drive spindle from twisting in relation to the tool housing during a spindle locking mode, a fan wheel is provided which is intended at least for cooling the drive motor, at least 20 percent by volume of the fan wheel including a metal having a density of greater than or equal to 3.5 g/cm