1-20 Drill Size: A Comprehensive Guide
Drill bits are an essential tool for any DIY enthusiast, woodworker, or construction professional. With so many different drill bit sizes available, it can be overwhelming to choose the right one for your project. In this article, we will explore the 1-20 drill size range, including their measurements, uses, and applications.
What are Drill Bit Sizes?
Drill bit sizes are measured in inches or millimeters and are usually represented by a number or letter. The size of a drill bit determines the diameter of the hole it can create. Drill bit sizes can range from very small (1/16 inch) to very large (over 1 inch).
1-20 Drill Size Chart
Here is a chart of the 1-20 drill size range, including their measurements in inches and millimeters:
| Drill Size | Inch | Millimeter |
|---|---|---|
| 1 | 0.2280 | 5.80 |
| 2 | 0.2660 | 6.75 |
| 3 | 0.3050 | 7.75 |
| 4 | 0.3430 | 8.70 |
| 5 | 0.3810 | 9.70 |
| 6 | 0.4190 | 10.65 |
| 7 | 0.4570 | 11.60 |
| 8 | 0.4950 | 12.55 |
| 9 | 0.5330 | 13.50 |
| 10 | 0.5710 | 14.45 |
| 11 | 0.6090 | 15.40 |
| 12 | 0.6470 | 16.35 |
| 13 | 0.6850 | 17.30 |
| 14 | 0.7230 | 18.25 |
| 15 | 0.7610 | 19.20 |
| 16 | 0.7990 | 20.15 |
| 17 | 0.8370 | 21.10 |
| 18 | 0.8750 | 22.05 |
| 19 | 0.9130 | 22.95 |
| 20 | 0.9510 | 24.10 |
Uses and Applications
Here are some common uses and applications for each drill size range:
- 1-5: Small pilot holes, screw holes, and precision drilling
- 6-10: General-purpose drilling, wood drilling, and metal drilling
- 11-15: Large pilot holes, hole sawing, and heavy-duty drilling
- 16-20: Extra-large pilot holes, anchor holes, and specialized drilling applications
Conclusion
Choosing the right drill bit size is crucial for any project. By understanding the 1-20 drill size range, you can ensure that you have the right tool for the job. Remember to always use the correct drill bit size to avoid damaging your material or drill bit. Happy drilling!
