Mulwark M35 15 Piece Cobalt Drill Bit Set - Titanium Nitride Coated, 1/8 - Inch Product Details Set Included; Mulwark cobalt drill bit set features 15 pieces of 1/8-inch drill bits. With a straight shank, these drill bits are designed for easy handling and stability during drilling tasks. The spiral grooves design enhances chip removal efficiency, allowing for smoother and faster drilling. The drill bits are fully grounded, ensuring improved durability and precision in various drilling applications. Durability; The metal drill bits feature M35 high-speed steel and 5% cobalt construction, making them exceptionally hard and heat resistant. They are further enhanced with a titanium nitride coating, which improves durability, and hardness, and reduces friction for efficient drilling performance. Jobber Length; The cobalt drill bits in this set have a cutting diameter of 1/8 inch and a flute length of 1-5/8 inches. With an overall length of 2-3/4 inches, they are versatile for various drilling tasks. The 135-degree split point ensures precise and efficient drilling, making them an ideal choice for accurate and clean holes. Application; These versatile drill bits sets can be used for drilling through a variety of materials such as plastic, wood, carbon fiber, copper, aluminum alloy, stainless steel, and high-carbon steel. Their multi-purpose design makes them suitable for a wide range of applications, providing convenience and efficiency for various projects. 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.