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Standard Drill Bit Sizes: A Comprehensive Guide
Drill bits are essential tools for various woodworking, metalworking, and construction projects. Knowing the standard drill bit sizes can help you choose the right tool for your specific needs. In this article, we will delve into the different sizes, types, and applications of standard drill bits.
Understanding Drill Bit Sizes
Drill bit sizes are typically measured in fractions of an inch or millimeters. The size of the drill bit determines the diameter of the hole it can create. It is crucial to select the correct size to ensure a proper fit and efficient drilling.
When looking at drill bit sizes, you will notice a range of fractions, such as 1/16, 1/8, 3/16, 1/4, and so on. These fractions represent the diameter of the drill bit in inches. For example, a 1/4-inch drill bit can create a hole with a diameter of 1/4 inch.
In addition to fractions, drill bit sizes are also available in metric measurements. The metric system uses millimeters as the unit of measurement. For instance, a 6mm drill bit can create a hole with a diameter of 6 millimeters.
Standard Drill Bit Sizes in Fractions
Here is a list of some common standard drill bit sizes in fractions of an inch:
| Size | Diameter (inches) |
|---|---|
| 1/16 | 0.0625 |
| 1/8 | 0.125 |
| 3/16 | 0.1875 |
| 1/4 | 0.25 |
| 5/16 | 0.3125 |
| 3/8 | 0.375 |
| 7/16 | 0.4375 |
| 1/2 | 0.5 |
| 9/16 | 0.5625 |
| 5/8 | 0.625 |
| 3/4 | 0.75 |
| 7/8 | 0.875 |
| 1 | 1 |
Standard Drill Bit Sizes in Millimeters
Here is a list of some common standard drill bit sizes in millimeters:
| Size | Diameter (millimeters) |
|---|---|
| 1.5 | 1.5 |
| 2 | 2 |
| 2.5 | 2.5 |
| 3 | 3 |
| 4 | 4 |
| 5 | 5 |
| 6 | 6 |
| 7 | 7 |
| 8 | 8
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