Description
HSS TITANIUM COATING: The step drill has excellent sharpness and durability due to its industrial high speed steel black and gold construction and titanium coating..PRODUCT DESIGN: 118° Split point tip accelerates cutting speed while increasing the wear resistance. The two flute design provides a smoother cutting, and allows chips to be removed quickly..50 SIZES IN 5 PCS: The step drill bits set includes 5 standard bits that can replace 50 individual drill bits and an automatic center punch. Please mark the spot that you are to drill for easier drilling. You can drill different sized holes for your DIY needs..WIDELY APPLICATION: Ideal for drilling holes in stainless steel, plastic, aluminum, iron and many other types of sheet metal. (recommended to add coolant or water when drilling metal plates and the speed should not be too high.).CONVENIENT STORAGE: All the cone bits come in a well-organized aluminum case for easy transport and storage.
