HSS Titanium Coating: The step drill has excellent sharpness and durability due to its high speed steel material and titanium coating
118° Split Point Tip & Spiral Dual-flute Design: increases cutting speed with self-centering and prevents walking, clears chips faster and allows particles to escape more easily
50 Sizes in 5 Pcs: The step drill bit kit includes 5 standard pieces with totally 50 sizes for versatility, enough for your DIY needs
Widely Application: Ideal for drilling holes in plastic, aluminum, iron and many other types of sheet metal (Not recommended for stainless steel or any other harder metal)
Equipped with a well-organized case, make it more convenient for using and storing the step drills
