6Pcs Combination Drill And Tap Bit Set, 3-In-1 Titanium Coated Hss Screw Tapping Product Details 3 IN 1 FUNCTION: They are taps which can provide drilling, tapping, deburring, and countersinking functions at the same time, three-in-one operation, saving time and processing steps to the maximum extent and improving work efficiency. PACKAGE INCLUDES?6 pcs drill and tap set, SAE sizes are 6-32NC, 8-32NC, 10-24NC, 10-32NC, 12-24NC, 1/4-20NC, 1/4 inch hex quick-change shank, fit electric hand drills, impact drills, bench drills, electric screwdrivers, and other tap machines. QUALITY MATERIAL: The tap and drill set are made of durable high-speed steel 4341, and the surface is treated with titanium coating, improving the cutting performance, wear resistance, and durability of the drill bit. EASY TO USE: The handle of each tap drill bit is engraved with a size convenient for you to choose the right size. The hex shank has a tapered end to prevent over-tap. The back taper exceeds the tap to prevent over-drilling and damage to the thread. QUALITY COMMITMENT: The drill and tap set comes with a portable storage box, easy to store and use. If you are not satisfied with your purchase for any reason, please contact us. We offer a 30-day money-back guarantee. 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.