Cobalt M35 Step Drill Bit 3/16" To 7/8", Tialn Coating 4 Spiral Flute, Plastic Product Details M35 HSS and TiAlN Coating: The step bit is made from 5% Cobalt M35 HSS(high speed steel) and coated with TiAlN, making it more sturdy and durable, especially suitable for use on stainless steel 4 Spiral Flute: cut faster and smoother and allow chips to escape easily 118 Split Point Tip: increases cutting speed with self-centering and prevents walking One bit with multiple drill sizes-----3/16", 1/4", 5/16", 3/8", 7/16", 1/2", 9/16", 5/8", 11/16", 3/4", 13/16", 7/8" Widely Application: Ideal for drilling holes in stainless steel, plastic, aluminum, iron, copper and other types of sheet metal 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.