Flzosper 13Pcs Sae/Metric Titanium Combination Drill Tap Bit, Countersinking Product Details Easy-to-Read Labels Quick Change Adapter One-Click Processing Tips: ??Various sizes?-Included Various sizes- Can be used to tap various threads. 6 Pieces SAE: 6-32NC, 8-32NC, 10-24NC, 10-32NC, 12-24NC, 1/4-20NC; 6 Pieces Metric?M3 x 0.5, M4 x 0.7, M5 x 0.8, M6 x 1.0, M8 x 1.25, M10 x 1.5; 1 piece-1/4" quick change adapter. ??Superior Quality?-High speed steel provide good wear resistance and cutting performance. Titanium coating provide longer bit life by resisting heat buildup. ??Ergonomic design?-Each tap drill is engraved with a label, which is convenient for you to choose the size that suits you. The convenient OE-inch (6.35mm) hex shank has a tapered end to prevent excessive knocks. Back taper exceeds the tap to prevent over-drilling and damage to the thread. ??High Efficiency?-1/4 inch hex shank fit into most power tools, such as electric drill, bench drill, drill press and Tapping machine. ??Widely Application?-Taps suitable for drilling, tapping, deburring on wood, plastic, iron, aluminum, copper, soft metal, etc. 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.