Product Features 1: The shell is made of high hardness cast aluminum, which is more durable and stronger. 2: It is not tiring to work for a long time, and the human body is comfortable to hold 3: Forged alloy steel tip, durable, labor-saving and efficient 4: The handle is made of hard plastic, the surface is non-slip, not easy to slip. 5: The high strength tie rod can better match the gun drill Instructions 1: Adjust the electric drill to a suitable gear 2: Open the electric drill chuck, insert the adapter, front clamp joint 3: Activate the reverse function of the electric drill until you hear the sound of "da da da", then insert the rivets of the appropriate size. 4: Reactivate the reverse function before, align the punch hole and drive the rivets 5: reactivate the reverse function and exit the rivets