3PCS/SET 4-32MM HSS Cobalt Step Drill Bit Set Nitrogen High Speed Steel Spiral for Metal Cone Triangle Shank Hole Metal Drills

The 3PCS/SET 4-32MM HSS Cobalt Step Drill Bit Set is the perfect tool for drilling precise and clean holes in metal surfaces. Made of high-speed steel with a nitrogen coating, this set ensures maximum durability and long-lasting performance. The spiral design allows for faster and smoother drilling, while the triangular shank provides a secure and stable grip. With a range of sizes from 4mm to 32mm, you can easily select the right drill bit for your project. This set is versatile and ideal for a wide range of metalworking applications.