![]() While they are quite durable, they are quite expensive and require frequent replacement. They are typically used for drilling into hard material, such as metal. Carbide tipped drill bits are also good for metal drilling, as they have the hardness of metal and the sharpness of diamonds. While they are more expensive than other types of drill bits, they can handle a wide range of tasks. They also help reduce heat, friction, and melting that can occur while drilling. ![]() TiN coatings create a harder surface on the drill bit and help it last longer and retain its sharpness. They are also very durable and can last a long time. HSS bits are the most versatile and can be used to drill through a variety of materials, including steel, aluminum, and plastic. Generally, the best drill bits are high-speed steel (HSS) bits with a TiN (titanium nitride) coating. The best type of drill bit depends on what you need it for. These are designed for use in a variety of materials, and generally with better performance and reduced wear. They are usually made from carbon steel and have a purpose-built coating that helps protect the bit from corrosion while drilling.įinally, there are multi-material drill bits, which typically feature a core of black oxide or HSS, with a coating of titanium or diamond. Green bits are designed for use in masonry and concrete. It also helps to increase the bit’s lifespan. ![]() Titanium coated drill bits are coated in titanium, and this helps to increase the speed and efficiency of drilling in lightweight metals, wood and plastic. These are the bits you should use for drilling into hard metals. Gold drill bits are made from a cobalt alloy, and they are both stronger and harder than HSS or black oxide. This material is stronger and more durable than black oxide, and it can be used on hard woods, light metals and some hard plastics. Silver or Gray drill bits are typically made from HSS, or high-speed steel. They are typically used for drilling materials such as soft steel, lightweight metals and plastics. When it comes to drill bits, color usually indicates the material that the bit is made from, but there can be additional information depending on the type and manufacturer.īlack Oxide drill bits are made from a strong, steel alloy, but the oxidation process reduces friction and heat, which prevents them from overheating when drilling. It is important to keep in mind that the larger the number associated with the drill bit size, the larger the drill bit size will be.Īdditionally, it is also important to check the specifications of the screw when purchasing screws and selecting the correct size drill bit. Generally speaking, the most commonly used drill bits for screws are the following standard sizes: #6, #7, #8, #10, #12 and #14. ![]() The standard drill bit size for screws depends on the size of the screw. What is the standard drill bit size for screws? Additionally, there are specialty drill bit sizes which can be used in more unique and specialized applications, such as tile, masonry, and metal drilling, to name a few. Metric drill sizes are also available and are typically measured in millimeters, with common sizes ranging from 0.5mm to 25mm. ![]() Drill bit sizes are most commonly measured in inches or millimeters, and can range drastically in size depending on the job at hand. ![]()
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