MaxTool 1-Inch bi-metal hole saw delivers precision cutting performance for toughest projects and professional applications. This 25mm versatile hole saw features high-speed steel M3 construction with 4/6 varied teeth patterns, and excels at cutting through thin metal, pipes, wood, plastic, and composites. The robust 1.75-inch cutting depth provides ample capacity for most applications, while the standard 1/2-20UNF thread connection compatible with standard arbors/mandrels for stable operation. The bi-metal construction combines durability with excellent heat resistance, allowing for efficient cutting action and extended use. The vacuum-furnace hardened teeth maintain their edges outstanding wear resistance and a tendency to stay sharper. The varied tooth design helps reduce vibration and promotes smoother cutting action across different materials. Multiple Knock-Out slots are for removing core easily. Thicker hardened wall and back prevent warping. Each hole saw comes securely packaged in a rigid box for safe storage, transport, easy identification. The sturdy construction and precise grinding make the hole saws the best choice for contractors, DIY enthusiasts and professional craftsmen, while working on construction, maintenance, such as home improvements, remodeling, manufacturing settings, electrical installations, plumbing projects, and other professional applications. The quality hole saw delivers clean, accurate cuts with minimal effort.