Abstract: A hone adapted to be used with a domestic electric knife. The knife comprises an electric motor in a motor compartment and a reciprocable drive from the motor to a take off point adjacent one end of the motor compartment. There are attachments on the drive to enable reciprocable drive of blades from the take off point. The hone comprises two carrying arms each having at a first end engagement means to engage the attachment in the motor compartment at the take off point. A hone member is attached to each carrying arm adjacent a longitudinal edge of that arm-the arms are held together as they reciprocate when driven by the electric motor.