The existing hook of the impact driver can be fixed to the belt as it is, but when trying to pass it to the belt as it is, clothes disturb and the insertion is not smooth. If you pass this hook through the belt, its smoothness has increased dramatically. Also, since it is a product that can be said to be a product that is said to be unsuitable for such conditions (use outside application) because there is a danger of coming off at the time of walking and the state of posture, so it is common to moor more strictly with carabiner etc. under such conditioning I think there is. It is a product considering the convenience in an upright rest state to the last.