Description Features: Made from hard cemented carbide, these wood drill bits will perform quite well in woodworking hole drilling. These bit include a center point which guides it throughout the cut and incidentally spoils the otherwise flat bottom of the hole. The cylindrical cutter around the perimeter shears the wood fibers at the edge of the bore, and also helps guide the bit into the material more precisely. The hole boring bits have radial cutting edges to plane off the material at the bottom of the hole. There are 16 different sizes of drill bits that you can use for different purposes. Specifications: Material: Cemented carbide Cutting Diameter: 15mm, 16mm, 17mm, 18mm, 19mm, 20mm, 21mm, 22mm, 23mm, 24mm, 25mm, 26mm, 28mm, 30mm, 32mm, 35mm Quantity: 16pcs Weight: 764g(approx.) Package Includes: 16 x Bits Payment Shipping Returns Contact Us 1.We accept PayPal only. 2.All major credit cards are accepted through secure payment processor PayPal. 3.We ship to your eBay or Paypal address. Please make sure your eBay and Paypal address is correct before you pay. 4. If you want to revise the shipping address. Please contact us within 24 hours by e-mail. Thanks for your cooperation! 1.Please make sure the Ship-To address you type during checkout is correct. Please check your shipping address carefully before checkout, it can’t be changed once order completed. 2.Shipping within 1 business days once payment completed. Orders placed on weekend will be shipped within 3 days. 1.We accept return or replace goods within 30 days after package signed. 2.Return policy 1)Quality problem or get wrong item:you can get free change or full refund 2)Dislike:You can return goods back to us,and get your payment back 3.Return Shipping Fee: 1)Quality problem or get wrong item:Shipping free on seller 2)Dislike:Shipping fee on buyer Please feel free to contact us if you have any problems of our items. You can contact us via ebay message. We appreciate your patience if you haven’t received items after estimated delivery time. If you are concerned in any way, please feel free to contact us via ebay message instead of leaving negative/neutral feedback or opening a dispute. We will make every effort to fix any problem(resend or refund any missing item).