Features a three piece wedges design with rubber rings fixation, creating stable splitting forces that follow natural stone textures, minimizing breakage and materials waste Not require heavy machinery—just an electric drill and hammer for quick stone separation, significantly reducing labor and equipment costs in quarrying or stone processing Specifically designed for 18mm diameter and 50mm depth drill holes, it pairs perfectly with electric hammer drills to ensures accurate placement and even force distribution during splitting tasks 105mm length and lightweight build make it easy to carry to job sites; rust surfaces withstands humid, dusty environments for good Crafted from high strength alloy, this 18mm stone splitter delivers durability and wear resistance for splitting granites, marble, and various hard stones with ease, Manufacturer: YUEHUINIAO