What are the two main types of drill bits?

What are the main types of drill bit?

The four main bits you'll come across or need for your walls or DIY projects are a masonry bit, a wood bit, a tile bit, and a twist bit. Drill bits from different brands will look slightly different but they will still feature the same main characteristics to help you distinguish between them.

What are the two categories of drilling bits?

Currently in the drilling industry, there are two main categories of drilling bits: rolling cutter bits and fixed cutter bits.

What is the most common drill bit?

A twist bit is the most common type of drill bit for home use. It works for general-purpose drilling in wood, plastic and light metal.

How many types of bits are there?

The two basic types of bits are snaffle bits and leverage (curb) bits.

Different Drill Bits and Their Applications

What are four types of drill bits?

Drill bits are generally classified as Twist Drill, Counterbore, Countersink, Flat Bottom Boring, and Specialty. On our web site we have divided these into two categories: Drill Bits - Normally used with hand held drills or drill presses fitted with standard chucks.

What is the name of the drill bit?

A unibit (often called a step drill bit) is a roughly conical bit with a stairstep profile. Due to its design, a single bit can be used for drilling a wide range of hole sizes. Some bits come to a point and are thus self-starting. The larger-size bits have blunt tips and are used for hole enlarging.

What's the difference between drill bits?

The easiest way to tell the difference is by looking at the cutting tip geometry. On a wood bit there will be a sharp pointed spur in the center whereas the masonry bit has a carbide tipped cutting edges that are ground to 135-degree angle.

What do different drill bits mean?

Each type of screw has a different slot on the head, which means they all need different screwdriver bits. Most screwdriver bits are made from a chromium-vanadium steel alloy, so you might see them called CRV screwdriver bits. Don't worry about this, though – it's the shape of the bit you should be looking out for.

Which drill bit should I use?

You can also determine the size of the drill bit based on the screws you want to use. The diameter of the hole you drill should be slightly smaller than the diameter of the screw. So, for example, if you're using a 3.5 mm screw, use a drill bit with a diameter of 3 mm.

What are the types of drilling?

What is a rotary drill bit?

Rotary masonry drill bits resemble hammer drill bits, but have slightly different tip shapes (at least from the few examples I've seen), and are typically shorter. Most people are only familiar with hammer drill bits and SDS-style rotary hammer drill bits.

What is a carbide drill bit?

Carbide (Carb) is the hardest and most brittle of the drill bit materials. It's used mostly for production drilling where a high-quality tool holder and equipment is used. It should not be used in hand drills or even drill presses. These drill bits are designed for the most demanding and hardest materials.

How many types of drill tools are there?

There are two types of electric drills: battery-powered drills, and the ones that are powered by cable. The first ones are fine because you don't have to be near the power supply all the time. Also, there are no cables getting in your way. On the other hand, the drills powered by cable are usually much more powerful.

What type of drill bit is used for metal?

There are two types of drill bits that you can count on for metalworking projects: titanium and cobalt. Titanium drill bits are high-speed steel drill bits (HSS) that have a titanium oxide coating. They are very hard, and corrosion-resistant.

What are the 3 types of sizes of drill bits?

What is the difference between masonry and wood drill bits?

Masonry bits resemble wood bits at a casual glance because they'll also have a deep spiral groove to help channel debris from the hole as you drill. The main visual difference is that masonry bits don't have the blunt, gently rounded tip you'll see on standard general-purpose bits.

What kind of drill bits are used for concrete?

Drill bits that can drill through concrete are called masonry bits. They are also good for drilling through brick and stone. Drill bits with a tungsten carbide tip are the strongest; when it comes to solid concrete, the sharper the better. Masonry bits cut holes through concrete in two steps.

What drill bit is used for wood?

High-Speed Steel (HSS) drill bits are used for drilling wood, light metals, fiberglass and PVC. Black oxide-coated drill bits are more durable than standard HSS bits and the coating helps the drill bit resist rust. These are best for hardwood, softwood, PVC, fiberglass and steel.

What is the difference between metal and wood drill bits?

The main difference between a metal and wood drill bit is in geometry. The wood bit has a spur in the center that will penetrate the wood and keep the bit stable during drilling. The metal bit is a twist bit with conical cutting tips followed by spiral flutes.

What do the Colours of drill bits mean?

Masonry drill bits normally silver have a wide head on. Gold bits are normally pointed and are for drilling wood etc. Black bits are also pointed headed but for drilling metals.

What is a HSS drill bit?

HSS drill bits, an acronym for high speed steel drill bits are extremely hardwearing and particularly well designed for drilling into metal surfaces, as they are much more resistant to the heat generated from the fast speed operation. The front edges cut the material, whilst the spirals remove debris from the hole.

What are spade bits used for?

Spade bits are for wood, plywood, and some plastics, and cut quickly with surprising precision. Use them only at high speeds, to prevent the bit from catching in the workpiece and the drill from trying to wrench itself from your grasp.

What are tungsten drill bits used for?

Tungsten carbide is combined with metals, such as cobalt, to make cutting tools. This material is very hard and allows bits tipped with carbide to drill many holes into concrete and cut through reinforcing steel when necessary.

What is the difference between carbide and cobalt drill bits?

Difference Between Cobalt and Carbide

Cobalt bits are made of HSS with cobalt blended into the alloy mix whereas carbide bits are made of sintered tungsten carbide. Carbide drill bits are generally more expensive than cobalt but can withstand higher temperatures and have greater wear resistance.