The Bosch EXPERT Sheet Metal Holesaw lasts up to 50x longer than BiMetal hole saws in tough materials, offering ultimate stability, robustness, and accuracy. Its carbide teeth, individually sharpened and brazed onto the body, provide extreme durability for cutting the hardest grades of steel. This holesaw is optimized for quality sheet metal work, ideal for cutting precise holes in stainless steel up to 5mm in depth for applications like electrical wiring, plumbing, sockets, and junction boxes. It is designed for use with the Bosch Power Change Plus keyless arbor for enhanced accuracy and robustness. The product features Bosch Carbide Technology for extreme durability and is made from a single piece of metal for superior stability.