General description These bi-metal hole saws are designed for cutting a variety of materials including aluminum, copper, steel, stainless steel, wood, plastic, and zinc. They feature a durable construction with a welded high-speed steel (HSS) tooth design for increased strength and longevity. The precise tooth arrangement ensures faster cutting and improved efficiency, while the bi-metal structure offers enhanced resistance and durability, making them suitable for demanding tasks. Technical specifications Diameter: 30 mm Material: Bi-metal (high-speed steel teeth welded to a flexible steel body) Technology: Weldtec for increased cutting speed and durability Design: Progressive gear teeth for reduced vibrations and faster, more accurate cuts Depth of cut: Variable, for efficient chip removal Construction: Reinforced thick plate for reliability in tough applications Compatibility and accessories Compatible with standard drill chucks Suitable for use with various drill types and sizes