Sized for their diameter, drill bits are constructed in a range of styles to help with specific tasks. Not sure which drill bit you need or what you need in your toolbox? Keep reading for a rundown of the different types of drill bits you’re likely to come across.

These are the bits to use when looking to drill into thick and dry wood. Thanks to their innovative design, you do not have to apply a lot of pressure when drilling into tough materials.

These are what you use when looking to bore smooth and clean holes into the woods. This bit also comes with a pointed tip to allow for easy positioning of the bit.

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Drill bits are cutting tools. If you do a lot of home projects or heavy-duty construction work, periodically sharpening your drill bits will be necessary.

Spade bits have a spade-shaped tip that allows them to bore into softwoods. They are typically used to create holes for running cables.

Drill bits made for steel, aluminum, copper, cast iron, sheet metal, fiberglass, brick, vinyl flooring, and more are also available.

These are what you use when looking to create holes in bricks, stones, or concrete. Due to the tough nature of those materials, masonry bits wear out quickly, meaning that you will need to replace them frequently.

The shank is the end of the drill bit that fits into the drill and is secured by the chuck. A round shank helps to center a bit in the chuck more accurately. The flat surfaces on a hex shank allow the chuck to grip the drill bit more securely.

The tip of the bit has a tiny hole where you insert the wire you are looking to pass through the material. Installer bits are incredibly long, reaching lengths of up to 18 inches to facilitate their work.

Titanium Nitride (Tin): A more expensive coating that increases the hardness of the bit and provides a thermal barrier resulting in increased production rates and longer tool life in harder materials.

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Quarter-inch hex shank bits are intended to be used on 1/4-inch impact drivers and can be quickly changed. SDS (slotted drive system) shanks are used for concrete drills and demolition bits and work specifically with SDS-Plus and SDS-Max rotary hammer drills.

These bits come with carbide tips to allow you to bore holes into tiles without creating chips or cracks in the tile. Different tile bits are designed for different types of tiles. Therefore, ensure that you check its package to confirm that it can drill into your tiles.

Black Oxide: The most economical coating. Black oxide adds corrosion protection, increases tempering and stress relieving of the bit, reduces galling and chip welding, and aids in retaining drilling lubricants.

Most drill bit sets are sold in a case with space to hold each bit in place. This keeps the drill bits from being nicked or scratched and also provides excellent organization.

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Also known as high-speed bits, they resemble corkscrews and are some of the most popular bits. They are typically used to drill small holes into wood and walls. Their unique design allows them to channel dust from the hole as they work.

Used to drill larger thru-holes in metal (7/16″ and up), these bits require a special machine. Similar to a hole saw, annular cutter bits cut the outer diameter of the hole and leave a solid center slug.

Dull drill bits can increase time and effort needed to complete work and possibly damage the materials you’re working on, and may even cause injury.

Drill bits are designed to drill holes in a variety of different common materials. These include different types of wood, metal, plastic, ceramic tile, porcelain, and concrete.

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When it comes to drills, there are two easily identifiable parts you need to know about – the shank and the chuck. Here’s a little information to help you understand more about how drills and drill bits work:

These are special types of bits that can drill through plastic, tiles, glass, marble, and brick. They can also withstand high temperatures.

Bronze Oxide: Bronze oxide increases the tempering and stress relieving of the bit and is generally used alone to visually identify cobalt steel or with black oxide to identify better grades of high-speed steel.

Auger bits have a screw tip that creates the initial hole for the rest of the bit to fall. As a result, holes by auger bits are incredibly clean and precise.

Plug cutters are helpful in professional projects, as they drill holes into the wood while cutting the wood plugs you require to hide recessed fasteners.

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Brad-point bits come in handy when you need to make clean and precise holes. They come with rubber stoppers to allow you to set a particular depth. Their precision makes them a popular bit among woodworkers.

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This creates a much more efficient drilling process with burr-free holes in tubing, sheet metal, and iron bar stock. Annular cutter bits on our site are made from Cobalt High-Speed Steel.

Each spot is marked for the bit’s size and type, making it easy to quickly find the right bit for the project you are completing.

These bits have a special design that allows them to drill a hole into a material with the purpose of extracting its core.

The best drill bits for metal drilling in ascending order in terms of cost are High-Speed Steel (HSS) bits, Black Oxide bits, Cobalt steel bits, and Titanium bits. For drilling large holes in thin or soft metals, you can use a hole saw which can also be used with a cordless drill.

Like auger bits, self-feed bits also feature a screw tip for positioning the bit. They create clean, precise holes, as well. However, since they do not channel the dust away from the hole as they work, you must halt the operation periodically to clear the dust away.

The chuck is the part of the drill that attaches the drill bit. Most power drills for home use have a 3/8-inch or 1/2-inch chuck. Larger chucks come in 5/8-inch and 3/4-inch sizes but are usually fitted on heavy-duty and industrial power drills and drill presses.

Named after their tip that resembles a series of pyramid-shaped steps, these bits are what professionals use to drill into sheet metal. Their stepped design allows you to create holes with varying diameters. Step bits are renowned for their versatility.

You use a hammer bit to create precise holes into concrete slabs when looking to determine the amount of humidity in a concrete slab.

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If your set didn’t come with a case or you’ve been buying individual drill bits, add a storage box with dividers to your toolset. Don’t store more than two bits together and use a permanent marker to mark each space with the size and type of drill bit stored there.

As their name implies, these bits can be adjusted to create holes of varying sizes, thus eliminating the need for purchasing bits of different sizes.

Adjust the spindle speed and/or feed rate based on your cutting conditions. NOTE: Feed to be reduced by approximately 50% if LOC (length of cut) is over 3XD.

Drill bits make holes in a variety of different common materials. These include different types of wood, metal, plastic, ceramic tile, porcelain and concrete. Different types of drill bits made for steel, aluminum, copper, cast iron, sheet metal, fiberglass, brick, vinyl flooring and more are also available.

A sharpening tool can be a good investment to keep your drill bits in top shape. More experienced DIYers can accomplish the task with a good set of grinding tools.

As mentioned earlier, drilling through tile requires a specialist drill bit – regular or even masonry bits simply won’t do the job as they’re not strong enough to penetrate tiles’ hard surfaces. Instead, you should opt for either carbide-tipped or diamond-tipped drill bits.

Tin also provides the same benefits as black and bronze oxide. Tin-coated bits are suitable for drilling iron and steel as well as aluminum, magnesium, etc.

Proper drill bit maintenance is not much different from maintenance for most tools, and it helps prolong the life of your drill bits and keeps them ready for the next job.

Black oxide is suitable for drilling iron and steel but is not recommended for drilling aluminum, magnesium, or similar materials.

Caring for your drill bits can also be a matter of safety; dull or damaged drill bits can create problems both in the work and for the worker.