Features: Made of premium material, practical, easy to install and use, wide range of applications, long service life. The three-jaw clip with quenching and hardening is more wear-resistant and prolongs the life of the adapter. The hexagonal screw of the adapter is connected to the electric drill , which quickly turns into an electric rivet machine and is easy to install. The high hardness hexagonal connecting rod is firmly clamped and can be used in lithium electric drill, twist drill, drill etc. Pull the rivet clockwise and pull the rivet counterclockwise. Widely used in the window and door industry, the production of electrical appliances and air conditioning, aviation and navigation equipment, aluminum alloys and other riveting, automobile manufacturing and production. Specification: Material: hard alloy Color: black Suitable rivet interface: 2.4mm, 3.2mm, 4.0mm, 4.8mm Chuck length: 30mm /1.18 in Diameter of chuck: 8 mm / 0.31 in Total length of adapter: 143 mm / 5.63 inch