Best Copper Drill Bits of 2025

The TICONN 99PCS Titanium Coated Drill Bit Set is a great choice for drilling into mild steel, aluminum, copper, soft alloy steel, wood, and plastic. Made from premium quality titanium coated high speed steel, these bits stay sharper and last longer than uncoated and oxide-coated drill bits. The 135° point angle drill bits keep centered without a pilot hole, and the rugged case keeps all drill bits well organized. Plus, the included center punch will help you to mark and drill more precisely.

TICONN 13 PCS Titanium Coated Drill Bit Set is made from premium quality titanium coated high speed steel (HSS). It is designed with a 135° point angle to keep centered without a pilot hole. The set includes 13 different sizes from 1/16" to 1/4" and comes with a rugged case for easy storage. Customers have found the drill bits to be sharp and effective, but some have had issues with the durability of the bits.

The SALI Step Drill Bit Set offers 13 versatile sizes, ranging from 1/8" to 1/2", making it ideal for various projects. The innovative four-blade design ensures quick and smooth cutting, allowing you to work efficiently. With a Tialn coating that provides exceptional hardness, you can tackle tougher materials with ease. This M35 cobalt high-speed steel set is perfect for drilling through stainless steel, aluminum, wood, and plastic. The quick-change hex shank fits securely into power tools, minimizing slippage and enhancing your control during use, whether you're a handyman or a professional.

The COPOUIXR Cobalt Drill Set features versatile drill bits ideal for a variety of materials, including stainless steel, cast iron, and aluminum. With 5% cobalt, these bits offer improved hardness and durability, making them a reliable choice for both home projects and professional tasks. The sharp 135-degree spiral design ensures efficient cutting without lingering on surfaces, allowing you to work quickly and effectively. This 13-piece set comes in various sizes, providing the flexibility you need for different applications, all neatly organized in a handy plastic storage box for easy access and transport.

The GQFOWE HVAC Repairing Set is a versatile tool set designed for servicing air conditioners. It includes 6 different sizes of drill bits, ranging from 1/4" to 7/8", making it suitable for various copper pipe expansion operations. Made of high-quality ball bearing steel, the swaging tool drill bits are durable and have high wear resistance. The working principle of this tool set is to expand the soft copper pipes of the air conditioner, allowing for leak-proof connections. With its user-friendly design, HVAC installers can easily perform copper pipe expansion without the need for complicated learning. The compact size of the set makes it easy to carry and store, making it a convenient tool for professionals in the field.

The COMOWARE Drill Bit Set features high-speed steel construction with a titanium coating, ensuring durability and exceptional cutting performance. The precise 135° split point design helps prevent the bits from wandering, making your drilling tasks easier and more accurate. With a two-flute form, these bits efficiently clear debris, reducing friction and heat for a cooler drilling experience. Additionally, the set comes with a well-organized storage case, allowing you to keep your bits neatly arranged and easily accessible for your DIY projects and home repairs.

The GMTOOLS 230 Pcs Titanium Coated Drill Bit Set is made of high-speed tool steel with titanium coating, which provides precision, durability, and faster drilling. They are suitable for electric power drill drivers and ideal for a wide range of materials including metal, wood, and plastic. The set includes 230 pieces of different sizes ranging from 3/64" to 1/2", and they keep centered without pilot holes. The jobber self-centering drill bits are compatible with most corded or cordless hand drills and drill presses. The set comes with hard storage, and the manufacturer offers a 30-day money-back guarantee.

The HYMNORQ HVAC Flaring Tool Set is a 5PC drill bit set specifically designed for air conditioner repairing. With this set, you can easily create flares with the perfect dimensions for a secure and leak-free connection. The high-temperature method used in the manufacturing process ensures the malleability of the copper tube, preventing cracks and leaks. This set includes the most common HVAC tubing diameters, allowing you to work with various sizes. The flaring drill bits are compatible with power drills and screwdrivers, making the flaring process quick and efficient. The 1/4 inch hex shank enables quick release, further improving your work efficiency. With the HYMNORQ HVAC Flaring Tool Set, you can confidently repair your air conditioner with ease and precision.

The Yu&Yang HVAC Repairing Set is a 6-piece manual copper pipe swage tool with 6 different sizes including 1/4", 3/8", 1/2", 5/8", 3/4", 7/8". It is made of durable bearing steel and is wear-resistant. This tool is designed to expand the copper pipes when installing air conditioners, making it simple to use and perfect for installers.

The HARFINGTON Cobalt Drill Bits are designed for precision and durability. With a cutting diameter of 3.3mm, these bits are perfect for drilling into tough materials like stainless steel and cast iron. The M35 high-speed steel construction, which includes 5% cobalt, means you’ll experience faster cutting and improved wear resistance. The unique 135° quick-cut split point helps prevent the bit from wandering, ensuring accuracy with every drill. Additionally, the fully ground spiral groove design effectively removes debris, reducing heat and friction while you work, making your drilling tasks smoother and more efficient.