SENTUO Aerial Bundle Cable Insulation Piercing Connector for use with insulated aluminium or copper conductors. Our products with much more reasonable price and good quality to be 30% supplier in China and cover most of Southeast Asia and Europe markets. The Aerial Bundle Cable Insulation Piercing Connector are Fast and Easy to install and Strong in connection. Hexagonal shear-head bolt ensures precise tightening control of the insulation piercing clamps. The design makes it possible to entirely seal the connection against water penetration, making it a waterproof connector.