VEVOR Jack Hammer 1-1/8 Tamper Shank, Dirt Tamper 6x6 Compactor Plate with Electric Chisel Dirt Compactor, Demolition Jackhammer Bits Solid Compactor Breaker Hammer Concrete Tamper Asphalt ToolsProduct Features 1 3 16" Hex Shank & 2 Chisels VEVOR's tamper shank and plate is designed to fit all the hammers with a locking system of 1 3 16"(30 mm) hex shank. The extra point chisel helps break stubborn materials easily. Reinforced Steel Material Our jackhammer bit is crafted from high quality steel drop forged and heat tempered. It can deliver superior strength and ensures strong wear resistance and shock absorption. Solid Structure Your jack