Set of 15 Cobalt Steel Drill Bits 1/16″ – 1/2″ Self-Centering, Gold Oxide Finish. Product Overview This set of 15 short-length drill bits offers precision and durability for a wide range of drilling tasks. Ranging from 1/16″ to 1/2″ in 1/64 increments, these cobalt steel drill bits are designed to handle tough materials with ease. Featuring a gold oxide finish for wear resistance and a self-centering 135-degree split point, these bits are engineered for performance, reducing clogging and increasing tool life. Made in the USA, this set provides the quality and strength needed for both professionals and DIY enthusiasts. Complete Set : Includes 15 drill bits, ranging from 1/16″ to 1/2″ in 1/64 increments, offering versatile size options for various drilling projects. Cobalt Steel Construction : Made from premium cobalt steel, these drill bits provide extended tool life, especially when drilling into tough or hardened materials, outperforming standard high-speed steel bits. Gold Oxide Finish : The gold oxide coating enhances wear resistance and lubrication, making the drill bits ideal for working with ferrous materials like steel and iron. This finish also helps to prolong the life of the drill bit. Self-Centering Split Point : The 135-degree split point design allows for easy penetration into hard materials without the need for a pilot hole. The split point also produces small chips, reducing clogging and ensuring smoother drilling. Extra Thick Web : These drill bits feature an extra thick web for increased strength and rigidity, making them more durable and less likely to break during heavy-duty drilling compared to standard drill bits. Made in the USA : Proudly made in the USA, these drill bits meet high manufacturing standards for quality, performance, and reliability. Finish : Gold oxide for wear resistance. Drill Sizes : 1/16″ to 1/2″ in 1/64 increments. Point Style : 135-degree split point for self-centering and reduced clogging. Web : Extra thick for increased strength. Country of Manufacture : USA. Frequently Asked Questions (FAQs). What materials can these drill bits be used on? These drill bits are ideal for drilling through hard materials, including steel, iron, and other ferrous metals. Do I need a pilot hole to use these drill bits? No, the 135-degree split point allows the bits to self-center and penetrate hard materials without the need for a pilot hole. How durable are these drill bits compared to regular steel drill bits? The cobalt steel construction provides superior durability and a longer tool life compared to high-speed steel drill bits, especially when working with tougher materials. Can these bits be used for wood or soft metals? While these bits are designed for tougher materials, they can also be used on wood and softer metals, although they are optimized for harder, ferrous materials. What is the benefit of the gold oxide finish? The gold oxide finish provides additional lubrication, reduces wear, and protects against rust and corrosion, making the bits more efficient and long-lasting. Are these drill bits suitable for heavy-duty applications? Yes, the extra thick web and cobalt steel construction make these bits ideal for heavy-duty drilling tasks. What is the advantage of the self-centering split point? The self-centering 135-degree split point allows for more accurate drilling, reduces walking, and minimizes clogging during use. Can these bits be used with a drill press? Yes, these drill bits can be used with both handheld drills and drill presses for precise, controlled drilling. How should I maintain these drill bits? After use, clean the drill bits to remove any debris, and store them in a dry place to avoid rust. The gold oxide finish reduces the need for additional lubrication but ensure the bits remain clean. Are these drill bits made in the USA? Yes, these drill bits are proudly made in the USA, ensuring high quality and manufacturing standards. Item dimensions L x W x H. 8.86 x 4.13 x 1.89 inches. Global Trade Identification Number. PRODUCT DIMENSIONS : 4.13 inches x 8.86 inches x 1.89 inches. Weight: 1.93 lb. Welcome to Laelegencia, your premier destination for high-quality products at unbeatable prices. Our commitment to excellence ensures that you receive top-notch service and premium items across a variety of categories. We take pride in serving you and strive to bring a smile to your face with our exceptional service and products. Thank you for choosing Laelegencia. We are always working hard to ensure your package arrives as soon as possible. In most cases, your package will arrive before due time as it is a high priority for us. If there are any unexpected delays, please let us know and we will take care of it immediately. We are committed to your happiness.