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 stresssed and makes sure that they have little chance to drop. 4、Precise 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 Accessories: The product includes 1 connecting rod, 1 drill bit, 1 hex wrench, and 1 nut. The combination makes the system work successfully.