1. It comes in 1 piece/3 pieces with step drills in sizes 3–12 mm, 4–12 mm, 4–20 mm, coated, with a straight groove, for coated wood, hole cutters, cone drills, and an electric tool set. 2. The product is available as 1 piece or 3 pieces, including step drills of various sizes like 3–12 mm, 4–12 mm, 4–20 mm, with coating, a straight flute, suitable for coated wood, hole saws, cone drills, and an electric tool set. 3. There are 1 piece/3 pieces options with step drills measuring 3–12 mm, 4–12 mm, 4–20 mm, having a coating, a straight thread, for coated wood, hole cutters, cone drills, and an electric tool set. 4. It offers 1 piece or 3 pieces with step drills in the ranges of 3–12 mm, 4–12 mm, 4–20 mm, featuring a coating, a straight groove, for use on coated wood, hole saws, cone drills, and an electric tool set. 5. The item is sold as 1 piece/3 pieces and has step drills of 3–12 mm, 4–12 mm, 4–20 mm sizes, with coating, a straight nut, for coated wood, hole cutters, cone drills, and an electric tool set