Difference Between Drilling, Boring, and Reaming – Complete Guide
Most of the kinds of woodworking and wall decoration and metal constructions require drilling. However, drilling isn't the only thing that is expected from an expert, further boring and reaming also require to provide a top-notch finish.
It seems that these works are pretty similar to each other. But, do you know each one of them differs from one another in many ways?
If you are interested in learning the difference between drilling, boring and reaming, this guide will surely help you.
What is Drilling?
Before jumping into the differences, it would be beneficial to know about drilling first. Drilling is how a hole is made in solid materials like wood, metal, brick, concrete.
In order to create a hole, a drilling machine is required. A drill bit is an object that cuts through solid materials with the help of its rotary mechanism.
There are also manual ways to drill. Using a hand powered a manual bit, you can cut through the materials as well. So, you can drill mainly in two ways; electrically and manually.
Electric bits are primarily used for making holes on the stronger object. It is used in the wooden object as well.
Drilling mainly is of several types; spot drilling, deep hole drilling, and center drilling are the most common ones. Spot drilling helps to make a spot to drill the final hole.
If you want more deep hole than usual, then you will need deep drilling. The depth is ten times larger than the size of the diameter of the hole. Special equipment is required to drill such deeper hole.
The center drilling is when you need to countersink center holes. It mounts the workpiece in between its center for turning or grinding.
Tips for Drilling
Some Added Safety Tips
What is Boring?
Boring is to extend the hole even further. Let me explain it. If you already have a hole in your wall and you want this hole to make even larger, that is where you need boring.
Sometimes, the size of the hole is not what you expected or does not fit for the purpose it was made. In this condition, you do not need to drill another hole. To ensure the better accuracy of the hole, boring would be more than enough. In addition, boring can also be done to cut a tapered.
During the boring, you might come across in a situation where two ends of the hole support the boring bar. It indicates the boring as Lineboring.
Furthermore, if only one end of the hole supports the boring bar, then it is Backboring. Backboring works on both blind holes and through holes.
For boring, lathes and jig borers machines are used. For general and simple work, a lathes machine will do the trick. But for more specialized work, you need to use big borers.
Tips for Boring
What is Reaming?
After drilling and boring, you will need to smooth a hole through the reaming process using an edge cutting tool known as the reamer. When you do not get a hole as perfect as you wanted, then a reamer can make the hole smooth and provide you with a great finish as you expected.
Sometimes when you do not need boring a hole, you can start reaming the hole straight after drilling. All you need to do is to measure the diameter of a hole ensuring the size is less than the targeted diameter during drilling. It will make easy for you to work on targeted diameter.
Keep in mind that the diameter of the drill and reamer are not the same. Therefore, you need to set smaller diameter for reaming than drilling. Most commonly used reamers are straight reamer, shell reamer and rose reamer.
Straight reamers are for minor broadening. If the edges are rough, then you will need rose reamers. For bearing purpose, go with shell reamers.
There are other reamers like tapered reamer that is used for receiving a taper pin. On the other hand, there are non-precision tapered reamers as well that cleans burrs from a cut hole.
Tips for Reaming
The Differences Explained
Despite having some similarities, three of them have numbers of differences among them. Let's have a look at their differences.
1. Way of Work
Drilling refers to cut a hole on solid materials such as metals, bricks, concretes, woods, etc. And this process is done through a drilling machine or manual drilling bit.
Boring is done for the enlargement of a hole. If there is any need for increasing the size of a hole or drilling bit cannot drill a hole of the expected size, then boring is performed.
After drilling, most of the time it is necessary for making the hole smooth for many reasons. Reamers are used to finish rough hole surfaces.
2. Cutting Tool Type
As far as it refers to drilling machine or manual bits, they are double point cutting tool.
While on the other hand, a borer refers to a single point cutting tool.
And the reamers are known as multi-point cutting tool.
3. Stage of Working
Drilling is the first stage of hole construction which is done on solid materials.
A pre-drilled hole is required for performing boring. If there is no hole, what on earth someone would need boring?
As same as boring, reaming also requires a pre-existing hole for making it further smooth.
4. Increasing the Size of a Hole
You can increase the length of a hole through drilling, but you cannot increase the diameter of it. It is limited to the diameter of the drilling bit.
Boring is performed for making a hole even bigger. With borer, you can increase the diameter of the hole, but you cannot do anything to its length.
You have no room for increasing neither the diameter nor the length of a hole when it comes to reaming.
5. The Quality of Work
The finishing of drilling is not that good. Drilling makes the surface rough.
The quality overall quality of the hole after boring slightly improves. But that is not the purpose of boring.
Reaming is performed to make the surface smooth. Therefore, if the smoothness of a hole is your concern, you must perform reaming after finishing the drilling process.
6. MRR – Material Removal Rate
Drilling is a process of cutting through a solid surface which makes drilling higher in MRR.
However, MRR is not that higher like drilling when it comes to boring. But MRR is quite higher compared to the reaming process.
When reaming, MRR is very poor because there is nothing that involves MRR in reaming. It is all about finishing a rough surface.
Similarities Between Drilling, Boring, and Reaming
Now let's see what the similarities between these three processes are –
After knowing about drilling, boring and reaming, you will be able to make perfect holes on a material. Learning about their differences will make you understand when you need to focus on what during a hole fabrication.
You can skip boring if you are okay with the size of a hole. But for perfection, make sure you ream the hole properly after drilling.