What are the sizes of number drills?
What are the sizes of number drills?
Number drill bit gauge sizes range from size 80 (the smallest) to size 1 (the largest) followed by letter gauge size A (the smallest) to size Z (the largest). Although the ASME B94. 11M twist drill standard, for example, lists sizes as small as size 97, sizes smaller than 80 are rarely encountered in practice.
What size is a number 3 drill?
7/32″
| To Tap This Size Screw Or Bolt: | Use This Drill Bit: | (Closest Fractional:) |
|---|---|---|
| 1/4-28 NF | #3 | 7/32″ |
| 1/4-32 NEF | 7/32″ | 7/32″ |
| 1/4-40 NS | #1 | – |
| 7mm-1.00mm | 6.1mm | 15/64″ |
What size drill bit is a number?
Downloadable versions:
| Drill size | Diameter (in) | Diameter (mm) |
|---|---|---|
| #107 | 0.0019 | 0.0483 |
| 0.05 mm | 0.0020 | 0.0500 |
| #106 | 0.0023 | 0.0584 |
| #105 | 0.0027 | 0.0686 |
What size is a number 20 drill?
Drill Bit Size Chart
| Size | Decimal Equivalent | Size |
|---|---|---|
| 74 | 0.0225 | 21 |
| .60 mm | 0.0236 | 20 |
| 73 | 0.024 | 4.10 mm |
| 72 | 0.025 | 4.20 mm |
What size is number 8 drill bit?
What Size Drill Bit for a #8 Screw?
| Screw Size | Drill Hole Size (Softwood) | Drill Hole Size (Hardwood) |
|---|---|---|
| #7 | 3/32″ | 3/32″ |
| #8 | 3/32″ | 1/8″ |
| #10 | 7/64″ | 1/8″ |
| #12 | 1/8″ | 9/64″ |
What size is a number 47 drill bit?
The drill size chart contains tools up to 1.5 inches in diameter, but larger tools are also commonly used….Drill Size Chart.
| #107 | 0.0019 | 0.0483 |
|---|---|---|
| #47 | 0.0785 | 1.9939 |
| 2 mm | 0.0787 | 2.0000 |
| #46 | 0.0810 | 2.0574 |
| #45 | 0.0820 | 2.0828 |
What size is a number 30 drill?
This chart shows the diameters of number gauge drills size 80 (the smallest) to size 1 (the largest)….Number Drill Sizes.
| Drill | Inch | mm |
|---|---|---|
| 32 | 0.116 | 2.95 |
| 31 | 0.120 | 3.05 |
| 30 | 0.1285 | 3.26 |
| 29 | 0.136 | 3.45 |
What are the sizes of Drill numbers?
Metric drill bit sizes. Metric drill set,1.0–6.0 mm by 0.1 mm,jobber length.
What are the standard drill sizes?
What are the standard drill sizes? Range 1 (R1) is shortest in length, more common for sizing production tubing or casing, and ranges from 18 to 22 ft. Range 2 (R2) is considered the standard length for drill pipe and ranges from 27 to 31 ft. Range 3 (R3) is common in casing and also deployed in deep water drilling applications.
What size is a number 10 drill bit?
Number drill bit sizes: the sizes are indicated in numbers, range from size 80 (the smallest) to size 1 (the largest). Number and letter sizes are commonly used for twist drill bits rather than other drill forms. Fractional drill bit sizes: the sizes are written as irreducible fractions. ANSI B94.11M-1979 sets size standards for jobber-length
How do you calculate tap drill size?
Only enter numbers in the fields.