General description Our Metal Hole Cutter HSS Drill Bit set includes six carbide core drill bits designed for metalworking. These tungsten carbide tipped hole saws offer a superior alternative to conventional bi-metal hole saws, providing a longer lifespan and enhanced cutting performance. They are capable of cutting through various materials, including sheet steel, iron, aluminum, copper, cast iron, and stainless steel. Technical specifications Material: Tungsten carbide Size range: 22-65mm Quantity: 6 pieces Usage Ideal for cutting clean, burr-free holes in tough alloys and metals. Spring-loaded pilot drill ejects the cut ingot, saving time during operation. Normal maintenance and inexpensive resharpening allow for repeated use, extending tool life significantly.