Features Versatile Compatibility: Designed to connect seamlessly with electric hammers and impact drills, ensuring efficient performance for various drilling tasks Durable High Carbon Steel: Constructed from advanced high carbon steel, this shank features heat treatment for enhanced durability and a long lifespan under rigorous use Optimized Blade Structure: The round alloy blades are evenly stressed, minimizing the risk of blade drop and ensuring consistent performance during drilling Advanced Welding Technology: Features high-frequency welding for a secure and aesthetically pleasing weld opening, providing reliable operation and a professional finish Comprehensive Accessory Set: Includes 1 connecting rod, 1 drill bit, 1 hex wrench, and 1 nut, offering everything you need for successful drilling right out of the box Features: 1、Main Application: The shank is mainly used to connect the equipment like electric hammers, and impact drills. Also the drill hole opener convert. 2、High Carbon Steel Material: The shank is made of advanced high carbon steel material, which is heat treated and appearance treated, giving the product a long life span. 3、Reasonable Structure: The combination of round alloy blades makes each blades evenly strsed and makes sure that they have little chance to drop. 4、 Welding: The adaptation of the high frequency welding technology makes a tight weld opening, which comes with a slip weld opening and a beautiful appearance. 5、Impact Equipment Accories: The product includes 1 connecting rod, 1 drill bit, 1 hex wrench, and 1 nut. The combination makes the system work succfully. Specification: Item Type: Electric Hollow Core Drill Bit Shank Material: High Carbon Steel Material Color: Silver Size: Approx.155mm/6.1in Suitable For: The connection between the electric hammer and the impact drill. Also the drill hole opener convert. Package List: 1 x Connecting Rod 1 x Drill Bit 1 x Hex Wrench 1 x Nut Package List 1 x Connecting Rod 1 x Drill Bit 1 x Hex Wrench 1 x Nut