Based on my observations, these hole saws are perfect for electricians and mechanics. The set comes with a range of sizes, making it versatile enough for various projects. The blades are made of industrial and scientific grade stainless steel, which makes them towards the highest quality available. Unfortunately, it's a bit pricey, but the durability of these hole saws make up for it. Overall, I am satisfied with my purchase and would recommend these hole saws to anyone looking for high-quality cutting tools.