General description The FLITI Hole Saw Set includes 5 pieces of high-speed steel (HSS) cobalt hole saws, designed for cutting through wood, plastic, and various metals. The set features hole saws with diameters of 16mm, 18.5mm, 20mm, 25mm, and 30mm, making it versatile for different applications. Each hole saw is crafted from high-quality HSS, ensuring durability and precision in cutting. Technical specifications Material: HSS6542 Hardness: HRC 65 Surface treatment: Titanium plating Hole Saw Diameters: 16mm, 18.5mm, 20mm, 25mm, 30mm Shank Diameter: 8mm Hole Saw Blade Length: 65mm Packing Weight: 308g Installation The hole saws can be easily installed on various drills including bench drills, electromagnetic drills, pistol drills, and impact drills. Each hole cutter comes with an Allen key for removing the pilot drill. Usage Ideal for cutting precise holes in materials such as steel, stainless steel, iron, copper, brass, aluminum, fiberglass, and formica. Recommended to use oil or