6 Packs Titanium Combination Drill Taps Bit Set Sae 6-32Nc 8-32Nc, 20Nc. Product Details Specification ? Made from High Speed Steel 4341. Finish Type - Titanium. Connection - 1/4inch hex shank Quick change for impact drill. Sizes - SAE 6-32nc, 8-32nc, 10-24nc, 10-32nc, 12-24nc, 1/4-20nc. Features ? Our 6-piece titanium Combination Drill taps set is made from high speed steel, providing sharp, fast execution and retain strength and efficiency. The surface is coated with titanium alloy to improve the cutting performance of the drill and increase wear-resistant durability, so to prolong the life. Drill, Tap and Countersink Three-in-one operation enables hole drilling, tapping, deburring and countersinking in one step, saving a lot of time and efforts during your job on copper, brass, aluminum, sheet metal and plastic. Back taper exceeds the tap design helps to prevent over-drilling or damage the thread. The convenient OE-inch (6.35mm) quick change hex shank with a tapered end helps to prevent excessive knocks. This tap set includes 6 most popular SAE sizes. Each tap drill is engraved with its size, so you can choose the accurate bit without any difficulty. It also comes with a convenient storage case to keep the bits neat and dry. COMBINATION DRILL TAP COUNTERSINK- No more using a drill to drill the hole and then tapping it out later with another tool. All in one and works great and save a lot of time and trouble. HANDY TOOLS ? These drill tap bits are must have if you fabricate a lot; you can use the in aluminum, plastic, and so on; They're sharp, and easy to use; Go slow, once the tap is doing its thing, make sure not to strip the threads by bottoming it out. HIGH VERSATILITY ? Set of 6 drill tap bits in SAE sizes 6-32NC, 8-32NC, 10-24NC, 10-32NC, 12-24NC, OE-20NC, with 1/4inch hex quick-change shank, fit Electric hand drill, impact drill, bench drill, electric screwdriver and other tap machines. EASY TO USE - Each tap drill is engraved with its size convenient for you to choose the suitable size with a glance. A tapered end on hex shank can prevent excessive knocks; Back taper exceeds the tap to prevent over-drilling and damage to the thread. WORRY-FREE ? This Drill Tap Bits set comes with a portable storage case for convenient use and store. If you encounter any problems in using the products, please feel free to contact us for satisfactory customer service. 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.