Types Of Drill Bits And Their Uses

By | July 21, 2022

In this article, you’ll learnwhat is Drill Bit?How to use them?
with
pictures, applications,andTypes of Drill Bits. Furthermore, you can download thePDF file of this article at the cease of it.

What is Drill Bit?

In lodge to bore round holes in different jobs, drill and drill machines are used. The tool used for the deadening hole is called a drill. The machine with whose aid the drill is moved is chosen drill automobile. The method of tiresome holes with a drill and drill machines is chosen drilling.

A drill scrap is a cutting tool used to make or overstate holes in solid metal. These are used with a manual-operated drill or drill printing equipped with a chuck. These drilling machines use a key to tighten or loosen the clench.

A drill is 1 of the best accessories in a workshop and is required in nigh any projection. But, you can’t use any drill until you understand what drill you lot want to use for your piece of work. Drill $.25 are manufactured in a wide diverseness of types of sizes.

This commodity will aid you to understand drill $.25 so you tin can cull the right drill bit to make your job easier. Apart from this, nosotros accept written about the different tools used in all the workshops like punches, saws, pliers, and wrenches y’all can check these out as well. At present, let united states understand the types of drill bits in item.

Material Used In Drill Bit

The materials for the manufacturing of twist drills are as follows:

  1. Ane-piece construction: Loftier-speed steel or carbon steel.
  2. Ii-piece construction:
    1. Cutting portion – high-speed steel.
    2. Shank portion – Carbon steel with a minimum tensile strength of 70 kg/sq mm.

High-speed drills are more widely used due to their greater cutting efficiency. In improver, cemented carbide tipped drills are likewise employed in mass product work.

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Types of Drill $.25

Post-obit are the types of drill bits:

  1. Flat drill
  2. Straight fluted drill
  3. Twist drill
  4. Double fluted drill
  5. Multi-fluted drill
  6. Centre drill
  7. Countersinking drill
  8. Counter boring drill
  9. Oil hole or tube drill
  10. Spirec drill
  11. Beat out drill
  12. Step drill
  13. Installer bit
  14. Masonry Drill
  15. Rivet Drill
  16. Auger Drill
  17. Tile bits
  18. Hammer scrap
  19. Glass chip
  20. Forstner bit
  21. Hole saw
  22. Plug cutters

1. Flat Drill

This type of drill is generally fabricated by chirapsia slender sticks of loftier carbon steel. Their cutting border is ground and then hardened and tempered. It tin be made easily in whatsoever shape or size. These are made in different sizes after forging them. These drills are very inexpensive.

It is not used for dull holes in fe. It is usually used for tiresome holes in carpentry work and soft metals. The cutting indicate is kept at a xc° angle. On those solid metals where other drills get broken, this drill can be used later on properly hardening and temping.

ii. Straight Fluted Drill


A straight fluted drill consists of grooves or flutes running parallel to the drill axis. A direct fluted drill tin be thought of every bit a cutting tool with nix rakes. This type of drill is not bachelor in standard practise as the chips practise non automatically popular out of the hole.

They are essentially used in drilling brass, copper, or other softer materials. In drilling brass, the twist moves faster than the rate of the drill feed, and the drill digs into the metal. There is no such difficulty in using a straight fluted drill.

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3. Twist Drill Bit

Types of Drill Bits - Twist Drill Bit

Nowadays, twist and thick drills are used for tedious holes quickly, clean, and of accurate size. These are usually made of high-speed steel and thin rods of alloy steel.

And so cutting edge is made on the bottom end and a twisted groove is cutting on its body from top to bottom which is known as a flute. Considering of the twisted flute, it is chosen a twist drill. Information technology contains the main parts such equally tang, shank, body, signal, and neck.

4. Double Fluted Drill

This type of drill is best and stronger. Two flutes reverse to each other are cut in this drill. It is used virtually in all types of piece of work.

5. Multi-fluted drill

For certain special jobs, this drill is used. At that place are more than than ii flutes in this drill. Its distinguishing feature is that considering of its bigger cutting edge, the hole is bored quickly and it is make clean.

6. Centre Drill

Types of Drill Bits - Centre Drill

It is likewise known as a combination drill. On both its ends a cut point is made and its middle portion is plaint. Drilling and countersinking can be performed simultaneously with this drill. Information technology is used for fastening the lengthy job from center to middle on the lathe machines and likewise to do heart drill in a rod. Information technology has been shown in the figure.

7. Counter Sinking Drill

Types of Drill Bits - Counter Sinking Drill

Countersinking is washed past drilling holes in the places where counter head screws are to be installed. In this way, the head task of the spiral fits well.

This is a multi-fluted drill in which four flutes are cut. Its cut point is grinded at threescore° or 82°. In the figure, this type of drill and a screw fitted in a pigsty bored by it has been shown.

eight. Counter Wearisome Drill

Types of Drill Bits - Counter Boring Drill

When Allen screws are fitted counterboring is done with this drill. These types of screws are also fitted like the counter screw on the surface of the task. It is used to enlarge a hole. Boring in a hole is done from the upper side up to the peak of the screw head.

For plumbing equipment this type of spiral the surface of the task remains similar to the plain surface. The screw heads do non pose any hindrance in their functioning.

A noteworthy betoken is that in countersinking the hole is cutting slanting at 60° or 82 ° angle from the elevation whereas in counterboring the hole is fabricated deeper in the increased size upwards to the height of the screw caput.

The drill used for counterboring is besides called a counterboring cutter. A airplane pilot is built on its lower side. This pilot sets in the pigsty and helps in straight counterboring.

ix. Oil Hole or Tube Drill

There is a need for coolant or lubricant at the time of tedious hole with a drill which ensures that the drill betoken does not lose its capacity to cutting after becoming hot.

Autonomously from ordinary drills, at that place are other drills in which a pigsty is made from shank to cutting betoken for providing lubricant up to the cut indicate.

10. Spirec Drill

Types of Drill Bits - Spirec Drill

These are very delicate drills. These are used for boring very minute holes in the spray pump nozzle, store nipple, etc. Their size ranges from 0.0086″ to 0.0984″. These are available in numbers.

11. Beat out Drill

This is a unlike blazon of drill. Its shape is like a side and a face cutter is used in milling works. There are iv flutes made on it. Its upper part is 1/3″ per foot in taper. For using information technology a mandrel is required. These are often used for enlarging a hole.

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12. Step Drill

Types of Drill Bits - Step Drill

If you want to drill holes on canvass metal, you’ll need a step drill. Its appearance looks like a descending ladder. However, their working process costs a bit more than other drill bits, so if you work with sheet metal regularly, this is what y’all demand.

The design of the step bit allows you lot to drill holes of unlike diameters firmly. Another cool thing these bits make is de-burr holes, so y’all tin make clean out the waste fabric.

13. Installer Chip

Types of Drill Bits - Installer Bit

These types of drill bits are special twist drill bits used to drill holes for installing wires for security systems and for entertainment purposes. These drill bits look like auger bits, they are up to 18 inches long. You can utilize them to drill through plaster, wood, and some masonry.

There is a small hole in the tip of the bit. After drilling the hole in the surface, yous need to insert the wire into the pigsty of the tip and force information technology through the hole. Take it from the opposite side and pull.

xiv. Masonry Bit

Masonry Bit

These drill bits are used where brick, rock, and physical piece of work is going on. Equally hard as these bits are, you need to replace them nigh regularly as they wear out.

If y’all want to drill into the concrete for a long time, it causes the tip to exist melt. You can reduce that problem past periodically changing the drill out of the concrete.

15. Rivet Drill

Unless you’ve got a job in professional person construction, you probably can’t use these rivet bits. These types of drill bits are specifically designed to drill tiny rivets into pieces of sparse sheet metal.

16. Auger Bit

If yous desire to drill a hole on thick and dry forest, you can make information technology using an auger drill bit. It makes a hole in the forest very hands, so yous don’t have to apply every bit much pressure. These have a screw tip that causes the pigsty and helps to pull out the chip, creating a make clean pigsty.

You can apply these on thicker wood as many of these bits are up to18 inches in length. The large flute in its form supports the aqueduct by letting the dust into the hole. Some types have a hollow center that allows for even more than chip removal.

17. Tile Bit

Tile Bit

These types of drill bits consist of a carbide tip to drill into certain tile, reducing the take a chance of chips and cracks. The various types of tile bits are intended according to the kinds of tiles.

eighteen. Hammer Chip

Hammer Bit

The hammer bit is used to drill a precise hole in a physical slab that is required for consummate and accurate relative humidity.

19. Glass Bit

Glass Bit

This blazon of drill bit is used for drilling through glass, plastic, composite, brick, marble, and hollow brick. It has greater resistance to loftier temperatures, is perfect for drilling into deep material, and speeds up dust removal.

20. Forstner Bit

Forstner Bit

If you desire to make clean and smooth holes in woods, then this type of drill bit is right for y’all. This bit allows precision cut holes. Information technology has a pointed tip that helps to keep the fleck exactly where yous need it.

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There is no flute on it and you have to take it out regularly to clean it of chips and dust. Several applications need a drill press with this type of drill scrap.

21. Hole Saw

Hole Saw

You can use this type of drill bit where it is necessary to install door hardware or create a wiring pass-through. The hole saw creates a useless plug and a side cut-out in the saw cylinder pushes it out.

In addition, yous can employ an attachment to eye the hole and use a pilot bit to stabilize the blade. Small hole saws include a born shank rather than a pilot bit. Using a bi-metal hole saw, you can make holes in both wood and metal.

22. Plug Cutter

Plug Cutter

If you lot want to cut a wooden plug together or brand a hole in the wood, then you will need to use this type of drill bit. It helps to take woodworking that reaches professional piece of work.

Applications of Drill Bit

The drill bits are manufactured to drill holes in different materials. This involves various types of wood, metallic, plastic, ceramic tile, porcelain, and concrete. Drill $.25 are also available for steel, aluminum, copper, cast iron, sail metal, fiberglass, brick, vinyl flooring, and more than.

According to their diameter, drill bits are manufactured in many styles to aid in specific tasks. You can make any surface (depending on thickness) using footstep drill bits. Also, you can produce holes in high tensile metals by using a cobalt-type drill bit.

Closing it up

The drill $.25 are manufacture in many shapes and sizes. It is best to choose an ideal drill chip that suits your needs. Since they come in a variety of types to brand sure you will ever have what you lot need.

That’south it thank you for reading, I hope I have covered everything that you demand near drill bits. If you have whatever questions about “types of drill bits” you can ask in the comments I’ll answer to you. If you like this article and then please share it with your friends.

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FAQ

What are the different types of drill bits?

Apartment drill
Straight fluted drill
Twist drill
Double fluted drill
Multi-fluted drill
Heart drill
Countersinking drill
Counter boring drill
Oil pigsty or tube drill
Spirec drill
Shell drill
Step drill
Installer bit
Masonry Drill

What are the applications of drill $.25?

The drill bits are made to drill holes in dissimilar materials. This involves various types of wood, metal, plastic, ceramic tile, porcelain, and physical. Drill $.25 are also available for steel, aluminum, copper, cast iron, canvass metallic, fiberglass, brick, vinyl flooring, and more.

What is the strongest blazon of drill bits?

As drill $.25, tungsten carbide is the hardest bachelor to users. It volition concur its border longer than the to a higher place metals. But, information technology is brittle than cobalt blend, so tungsten carbide is commonly used on the tip of steel drill bits.

Source: https://www.theengineerspost.com/types-of-drill-bits/