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It is important to choose the right tap size for your pilot hole when threading bolts. It is crucial that you choose the correct tap size for your home project. It will ruin everything.
Our team will discuss the sizing table as well as things to remember when drilling a tap. Continue reading!
What Size Drill Bit Do I Need For A 3/8-16 Tap?
Use a 3/8-16 tap with a 5/41 cm drill bit. Below is a table that will help you to determine the correct tap size for 3/20 cm.
It is important to use the right size drill bit when drilling pilot holes. A tap that is too small could crack or break if it is drilled to the wrong size.
You will have weak threads if your drill hole is too big. During the project, you will need to remove your tap or screw.
The thread percentage is another thing you should consider when using the tap at 3/20 cm. You have the option to choose from the 50% or 75% threads.
The table below shows the standard thread size per inch and the drill sizes for the 50%- and 75%-threads.
The thread we usually use is the 75% drill. In some cases, however, you may only need 50%. It all depends on what material you are working with. You will need to use a tighter connection when working with harder materials, like steel.
For soft and thin materials, stronger threads are required and smaller holes. Harder materials require a larger hole. This is because the tap needs to be pressed less when cutting. To find out the recommended thread percentage, you can consult the manufacturer’s details.
Things To Consider When Drilling A 3/20cm 16 Tap
Now it’s time to drill. To test the tap, you can use a scrap piece of material if you aren’t familiar with drilling that material. This will help you to determine how to tap the actual workpiece.
To ensure excellent results, our experts recommend that you use the correct thread percentage and drill bit sizes for your project. Knowing what you require will save you money and help you avoid unnecessary tools. Take a look at these other factors.
