Wolfride 9Pcs Titanium Spiral Flute Tap Set Metric Machine Tap Set M2 M2.5 M3 M4 Product Details Made from HSS6542, coated with titanium, high hardness and rust resistance, long service life. Tap Size: M2*0.4, M2.5*0.45, M3*0.5, M4*0.7, M5*0.8, M6*1, M8*1.25, M10*1.5, M12*1.75. Spiral flutes, good chip removal effect, can tap to the bottom of the blind hole. Can be used for processing iron, aluminum and other materials. Please choose cobalt taps for other difficult to machine materials, like stainless steel, cast iron, etc. Used on drilling machines, tapping machines, CNC and milling machines, not for hand electric drill. 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.