Tapping Bits Set, High Hardness Combined Tap Drill 13Pcs Hss With Fast Change Product Details Feature: SPIRAL GROOVE DESIGN: Metric drill bit set, The tap adopt spiral groove design, the chip removal effect is better, more efficient WIDE RANGE OF APPLICATIONS: Drill tap set, Can be drilled in copper, brass, aluminum, metal plates and plastics for a wide range of applications SAVING TIME AND EFFORT: Drilling and tapping can be carried out at the same time, saving time and effort, very practical HIGH HARDNESS AND LONG LIFE: Using high speed steel material, possess high hardness and long life, wear resistant and AND RESISTANT: tap drill come with Ti plated surface, and resistant Payment We accept PayPal and credit cards via PayPal. Taxes - US We collect sales tax, as required by law. Shipping We make every effort of shipping within 3 business day of payment clearing. The estimated delivery time is 2 - 5 business days from the shipping date. Policies If you do need to return your item, please contact us via email (you will receive an email when your product ships with additional details - Subject: Important information about your purchase). You will then be provided with a return shipping label and packing slip. Pack the item carefully. Include the packing slip, apply the shipping label, and return the item within 30 business days of the date you request a return, or your return will be canceled. Once we receive your order we will inspect the return. Please allow up to 5 business days of receiving the returned item for your refund.