What is a 6 mm Tap Drill Size

6 mm

A lot of people might not know what a 6 mm tap drill size is, but it’s actually a pretty important measurement. It’s used to create threads in metal, and the proper size is essential for ensuring that the threads are strong and durable. If you’re unsure about what size to use, then it’s always best to consult with a professional. 

But knowing the basics can be helpful too, so let’s take a look at what a 6 mm tap drill size actually is.

What is a 6 mm Tap Drill Size?

A 6 mm tap drill size is a metric drill bit that is used to create internal threads in a workpiece. This size drill bit is commonly used for tapping holes for screws and bolts with a 6 mm thread pitch. It is important to note that the 6 mm tap drill size does not correspond to the actual diameter of the thread being created. 

6mm drill hole

The actual diameter of the thread will be slightly smaller, as the threads need to be slightly tapered in order to allow them to engage with each other. 

What is Close to a 6 mm Drill Bit?

A 6mm drill bit is about the size of a small paperclip. It’s just under 1/4 of an inch in diameter, making it slightly larger than a standard pencil eraser. This size is often used for jewelry and other delicate work, as well as for drilling through metal, plastic, and wood. 

If you’re looking for a close approximation to a 6mm drill bit, you can try using a 15/64 drill bit. This will give you a slightly larger hole, but it should be the right size for most purposes.

What is the Drill Size for a 6 mm Tap?

When it comes to drilling holes, size matters. If the hole is too small, the screw won’t be able to grip properly. On the other hand, if the hole is too big, the screw [1] will be able to move around, making it difficult to achieve a tight fit. With that in mind, it’s important to choose the right drill bit for the job at hand. 

For a 6 mm tap, the recommended drill size is 5.2 mm. This will create a hole that is just big enough for the screw to grab onto, ensuring a tight and secure fit. 


A 6 mm tap drill size is the recommended size to use when tapping a hole that is 6 mm in diameter. This size will ensure that the threads of the tap are able to properly engage with the material of the hole, and it will also produce clean and accurate threading. If you try to use a smaller or larger drill bit for this purpose, you may end up with an inaccurate or messy tapped hole.

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