Kendo Two Spiral Flute Cobalt Step Drill Bits With Automatic Center Punch, 5Pcs Product Features M35 COBALT HSS STEP DRILL BITS: The step drill has excellent sharpness and durability due to its industrial M35 high speed steel construction and titanium coating. PRODUCT DESIGN: 120 Split point tip accelerates cutting speed while increasing the wear resistance. The spiral-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. The hexagonal shank fits easily and securely into all power tools. 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. Shipping: Shipping is complimentary within the lower 48 US States. We Do Not Ship to PO/APO Boxes, HI or Alaska We Do Not Ship Outside of the Continental US All items ship within 24-72 hours of Payment For large items that require Freight shipping a valid phone number is required to call and schedule your delivery Terms of Sale and Feedback: Feedback is extremely important to us and If you are satisfied with our transaction, please take a moment to leave Positive Feedback. YOUR Satisfaction is our #1 Priority! If there are any issues, PLEASE contact us BEFORE leaving a neutral or negative rating so that we may resolve any concerns. We PROMISE we can make you happy if you give us a fair chance. Returns / Concerns: All items qualify for returns within 14 - 30 days of receipt. Buyer is responsible for return shipping on any item that is not damaged Please be sure this is an item you want before making your purchase. Customer Satisfaction is our TOP priority! All items are IN STOCK at time of listing. Inventory changes constantly and it is impossible to maintain a perfectly accurate count of all items. Please do not penalize us if we have to issue you a refund! Thank You For Your Business!