5Pcs Countersink Drill Bit Set 1/4" Hex Shank Quick Change Screw Drill Counter Product Details Product Description Introduction ------ 5 models can meet your multiple needs. ------ The high-quality materials are sturdy and long service life. ------ Best for woodworking applications; hard wood, soft wood, plywood, MDF, particle board and plastics. ------ Function: The drill bit is high-speed steel HSS4241, and the chamfering device is 45# steel. The chamfering device has adjustment screws, which can control the drilling depth. While drilling, it also takes into account the chamfering effect, which is convenient and efficient. Specification Material: The drill is high speed steel, the chamfer is high carbon steel Shank Type: 1/4 Hexagon Shank (6.3mm) Sizes: 7/64, 9/64, 11/64, 3/16, 7/32 Package included 5 * Countersink Drill Bit 1 * Allen Wrench key ?Wide Application? Suitable for hand drills and conventional electric drills. Perfect for wood, fiberboard, particleboard, plywood, plastic, and is an indispensable helper for drilling work. ?Quality Material? The counterbore drill bit is made of high-speed steel, which have high toughness, wear resistance, and good cutting retention. The chamfering device is made of high carbon steel, strong and sturdy. ?Adjustable? The high-quality countersunk hole is fixed on the plane of the handle by the hexagon socket screw to prevent loosening to ensure a firm fit. And can adjust the overall bit length and thus control the pilot hole depth. ?Tapered Drill Bit Set? You will get 5 countersinks, 7/64", 9/64", 11/64", 3/16", 7/32", covers the full range of screw sizes, meet your various needs. With a hex wrench, you can adjust the chamfer to control the drilling depth. ?High Efficiency? The chamfering device is 45# steel and has adjustment screws, which can control the drilling depth enable faster operation and self-clearing drilling on the swarf. While drilling, it also takes into account the chamfering effect, which is convenient and efficient. 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.