Ezarc Countersink Drill Bit Set, 24 Pcs Tapered Drill Bits Counter Sink Drill Product Details ?New Upgraded Set?EZARC 24pc countersink drill bit set that covers all the tool accessories you need for entire wood project. This includes 7pcs Tapered drill bits: 2pcs #4 (7/64"),2pcs #6 (9/64"), #8 (11/64"), #10 (3/16"), #12 (7/32"), 6pcs Wooden Sticks (4*9.5*150mm and 2*12.7*150mm), 1pc Allen key, 2pcs Depth stop rings (3/8" and 1/2"), 7pcs screwdriver bits (PH1?PH2?T10?T20?T25?S1?S2) and 1pc Extension bit shaft. ?Nitride-treated HSS?Crafted from industrial-grade high-speed steel with a nitrided surface, our woodworking countersink drill bit offer enhanced toughness and wear resistance. Compared to common carbon steel bits on the market, it boasts 2X longer lifetime. ?Precision Depth Control?With adjustable depth stop collars, this counter sink drill bit for wood offers precise control over pilot hole depth, ensuring consistent and accurate countersinking for a truly professional finish. ?Efficient Drilling, Flawless Finish?Our drill bit's sharp cutters and 82-degree counterbore angle ensure smooth, rapid drilling in hard and soft woods. Tapered pilot bits deliver fast, clean pilot holes for a snug screw fit. All-in-one drilling, countersinking, and counterboring maximize efficiency. ?Versatile Compatible?Ideal for various woodworking projects such as cabinetry and furniture making, this counter sinker drill bit set are suitable for hand drills, bench drills, electric drills. Note: For optimal cutting results, it is recommended to use the wood plug cutter on a bench 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.