5Pcs Carbide Tipped 90 Countersink With Adjustable Low Friction Depth Stop Product Details To Prevent Scratches On The Surface: Get precise and reliable results every time with it. Its built-in stopper prevents scratches on the wood surface, while the predetermined depth ensures stable and accurate drilling. High Quality Material: These countersink drill bits are made of high quality alloy steel. Offer superior cutting power and durable. High hardness and wear resistance, convenient and quick to drill a hole. High Efficiency Design: Quickly and accurately drill a smooth hole. Better in centering and no skid. It can effectively prevent the accumulation of debris retention, improve the drilling efficiency. Widely Application: Perfect for wood, fiberboard, particleboard, plywood, plastic, PVC, rubber, etc. Widely used suitable for DIY, home and general building or engineering using, etc. Different Sizes: Our Countersink drill bit sets include 5 kinds of sizes: 2.8 mm, 3.0 mm, 3.2mm, 3.5mm, 4mm. Very suitable for using to multi size wood hole drilling. 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.