The SE High Speed Steel Drill Bit Set, 0.3 to 1 mm (15 PC.) is useful drilling fine-detail holes with jewelry, electronics, glass, ferrous metals, marble, tile, stone, tough casting sand forgings, stainless steel, and more. This set is great for metalsmiths, jewelers, home, office, hobbies, wire insulation, metalworking, and more. These drill bits are ideal for dremel rotary tools. They come in a convenient storage pouch with labeled sizes for organization and transportation. This set includes these sizes (mm): 0.30, 0.35, 0.40, 0.45, 0.50, 0.55, 0.60, 0.65, 0.70, 0.75, 0.80, 0.85, 0.90, 0.95, 1.00 SE is committed to providing the customer with the best source for value possible on the market. You will enjoy the quality, function and usefulness of our SE High Speed Steel Drill Bit Set, 0.3 to 1 mm (15 PC.). IPR Rights Notice: Important: Avoid getting counterfeit items. Genuine SE products come with the SE logo on the packaging. SE is a registered trademark protected by US Trademark Law.