Here is a list of tap and drill sizes. Metric tap drill size chart, Standard drill, and tap chart. Sometimes drilling and tapping in manufactured parts are often required. One of the most common ways to produce such a threaded hole is to drill a suitably sized hole with a drill bit and then tap it with a tap.
Tap drill chart standard Metric, Explain Tap and Drill sizes
Each standard size of screw thread has one or several similar drill bit sizes that are within the appropriate size range. tap slightly larger than a minor diameter, but smaller than its pitch and major diameter.
Such a properly sized drill is called a tap drill for the size of the thread, as it is a correct drill to be followed by a tap. Many thread sizes have many potential tap drills as they are threads of varying thread depths between 50% and 100%. Typically, thread depths of 60% to 75% are desired.
People often use such a chart to determine the appropriate tap drill for a certain thread size or the appropriate tap for an existing hole, which we have given below.
List of Tap and Drill size - Metric thread tap drill chart
Tap drill size chart for standard threads
| Tap Size | Drill Size |
|---|---|
| M1 x 0.25 | 0.75mm |
| M1.1 x 0.25 | 0.85mm |
| M1.2 x 0.25 | 0.95mm |
| M1.4 x 0.30 | 1.10mm |
| M1.6 x 0.35 | 1.25mm |
| M1.8 x 0.35 | 1.45mm |
| M2 x 0.4 | 1.60mm |
| M2.2 x 0.45 | 1.75mm |
| M2.5 x 0.45 | 2.05mm |
| M3 x 0.5 | 2.50mm |
| M3.5 x 0.6 | 2.90mm |
| M4 x 0.7 | 3.30mm |
| M4.5 x 0.75 | 3.70mm |
| M5 x 0.8 | 4.20mm |
| M6 x 1 | 5.00mm |
| M7 x 1 | 6.00mm |
| M8 x 1.25 | 6.80mm |
| M9 x 1.25 | 7.80mm |
| M10 x 1.5 | 8.50mm |
| M11 x 1.5 | 9.50mm |
| M12 x 1.75 | 10.20mm |
| M14 x 2 | 12.00mm |
| M16 x 2 | 14.00mm |
| M18 x 2.5 | 15.50mm |
| M20 x 2.5 | 17.50mm |
| M22 x 2.5 | 19.50mm |
| M24 x 3 | 21.00mm |
| M27 x 3 | 24.00mm |
| M30 x 3.5 | 26.50mm |
| M33 x 3.5 | 29.50mm |
| M36 x 4 | 32.00mm |
| M39 x 4 | 35.00mm |
| M42 x 4.5 | 37.50mm |
| M45 x 4.5 | 40.50mm |
| M48 x 5 | 43.00mm |
| M52 x 5 | 47.00mm |
| M56 x 5.5 | 50.50mm |
| M60 x 5.5 | 54.50mm |
| M64 x 6 | 58.00mm |
m2 tap drill size - Standard Metric
m2 tap drill size = 1.60mm drill
m3 tap drill size - Standard Metric
m3 tap drill size = 2.50mm drill
m4 tap drill size - Standard Metric
m4 tap drill size = 3.30mm drill
m5 tap drill size - Standard Metric
m5 tap drill size = 4.20mm drill
m6 tap drill size - Standard Metric
m6 tap drill size = 5.0mm drill
m8 tap drill size - Standard Metric
m8 tap drill size = 6.80mm drill
m10 tap drill size - Standard Metric
m10 tap drill size = 8.50mm drill
m12 tap drill size - Standard Metric
m12 tap drill size = 10.20mm drill
m14 tap drill size - Standard Metric
m14 tap drill size = 12.00mm drill
m16 tap drill size - Standard Metric
m16 tap drill size = 14.00mm drill
m20 tap drill size - Standard Metric
m20 tap drill size = 17.50mm drill
What size drill bit for m24 tap - Standard Metric
m24 tap drill size = 21.00mm drill
See Also:
1. What is Thread and Types Of Threads In Hindi
FAQ for Metric Thread Tap Drill Size
1. What size hole to drill for m2 tap?
For m2 tap, drill size 1.60mm.
2. What size hole to drill for m3 tap?
For m3 tap, drill size 2.50mm.
3. What size hole to drill for m4 tap?
For m4 tap, drill size 3.30mm.
4. What size hole to drill for m5 tap?
For m5 tap, drill size 4.20mm.
5. What size hole to drill for m6 tap?
For m6 tap, drill size 5.0mm.
5. What size hole to drill for m8 tap?
For m8 tap, drill size 6.80mm.
6. What size hole to drill for m10 tap?
For m10 tap, drill size 8.50mm.
7. What size hole to drill for m12 tap?
For m12 tap, drill size 10.20mm.
8. What size hole to drill for m14 tap?
For m14 tap, drill size 12.00mm.
9. What size hole to drill for m16 tap?
For m16 tap, drill size 14.00mm.
10. What size hole to drill for m20 tap?
For m20 tap, drill size 17.50mm.
11. What size drill bit for m24 tap?
For m24 tap, drill size 21.00mm.
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