Titanium step drill bits are made of high-quality materials and are sturdy and durable. 50 sizes, machined diameters from 1/8 to 1-3/8 inches. Suitable for drilling holes in plastic, aluminum, copper and many other types of sheet metal. Double edge helical flute design removes chips, dust and debris. Package Includes: 5 x Step Drills, 1 x Automatic Center Punch, 1 x Aluminum Storage Box.
