The hexagonal shank hole cutter is designed for stainless steel, iron sheets, and aluminum materials, suitable for hole diameters from 12mm to 35mm. Its excellent cutting solves the problem of jamming during drilling, ideal for metalworking, automotive repair, and home improvement. Made from premium alloy steel, this hole cutter 70% better wear resistance and 50% longer lifespans than standard steel tools. It maintains sharpness in high intensity work environments, perfect for professional and industrial users. The unique hexagonal shank ensures a secure fit with electric drills, minimizing slippage for accurate drilling. Engineers and technicians can achieve precise results without tool instability, enhancing work efficiency. Weighing only 100g, this hole cutter is easy to carry in toolboxes or backpacks. Its compact design makes it convenient for on site construction or home repairs, solving storage issues of traditional hole cutter. Package includes: 1Piece Drill Bit