This 7 piece drill bit set is a great addition to any workshop .Using this product, our team found that it easily drilled through various materials including plastics and metals. The bits are made from durable plastic, making them long-lasting and a great value for the price. They are also easy to store and organize, with the included case. The only con we noticed is that they may not be suitable for heavy-duty industrial use. Overall, a great set for both professionals and DIY enthusiasts in the Industrial and Scientific field..