What sizes are numbered drill bits?
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 do numbers on drill bits mean?
As mentioned at the beginning of the article, the numbers on a drill represent the amount of torque the tool can apply to an object (such as a screw) or for hole drilling. The numbers usually range from 1 to 20 (or more) with 1 representing the least amount of torque and 20, the greatest.
What size is number 10 drill bit?
Number Drill Sizes
| Drill | Inch | mm |
|---|---|---|
| 12 | 0.189 | 4.80 |
| 11 | 0.191 | 4.85 |
| 10 | 0.193 | 4.90 |
| 9 | 0.196 | 4.98 |
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 a number 1 drill?
Downloadable versions:
| Drill size | Diameter (in) | Diameter (mm) |
|---|---|---|
| 1 mm | 0.0394 | 1.0000 |
| #60 | 0.0400 | 1.0160 |
| #59 | 0.0410 | 1.0414 |
| #58 | 0.0420 | 1.0668 |
Which is bigger 1 2 or 9/16 drill bit?
Sets with even more varying drill bit sizes would include diameters smaller than 1/16″ or larger than 1-1/2″.
…
Types of Drill Bits.
| 1/4″ | 11/16″ | 1-1/4″ |
|---|---|---|
| 1/2″ | 7/8″ | 1-1/2″ |
| 9/16″ | 1″ | |
| 5/8″ | 1-1/8″ |
What number is a 1/16 drill bit?
Downloadable versions:
| Drill size | Diameter (in) | Diameter (mm) |
|---|---|---|
| 1/16 in | 0.0625 | 1.5875 |
| 1.6 mm | 0.0630 | 1.6000 |
| #52 | 0.0635 | 1.6129 |
| 1.7 mm | 0.0669 | 1.7000 |
How do I know drill bit size?
Typical drill bits have markings somewhere on the shank above the threads. It’s small, but it usually has the drill-bit diameter stamped into the metal; the number is written in fractions. For example, the markings may read: 1/4-inch, 3/6-inch or 25/32.
What size is a number 9 drill bit?
Screw Machine Drill Bit: #9 Drill Bit Size, 44.50 mm Max Drilling Dp, 3/16 in Shank Dia.
What is a number 12 drill bit?
Drill Chart for Gauge 1-46 (smallest to largest)
| Gauge | Dec. (in.) | Gauge |
|---|---|---|
| 36 | 0.1065 | 13 |
| 35 | 0.11 | 12 |
| 34 | 0.111 | 11 |
| 33 | 0.113 | 10 |
What size is a number 18 drill bit?
Jobber Length Drill Bit: #18 Drill Bit Size, 2 1/8 in Flute Lg, 3 1/4 in Overall Lg. Country of Origin USA.
What size is a number 21 drill bit?
1 3/8 in
Jobber Length Drill Bit: #21 Drill Bit Size, 1 3/8 in Max Drilling Dp.
What size is a number 3 drill bit?
1/4″-28
Wire Gauge (Number) M2 High-Speed Steel Drills – Premium Swift Bore
| Product No. | 01503 |
|---|---|
| Drill Size | No. 3 |
| Decimal Inches | 0.2130 |
| For Tap Size | 1/4″-28 NF (National Fine SAE) |
| Weight | 0.04 lbs |
What size is a number 5 drill bit?
| Drill Bit Hole Diameters | ||
|---|---|---|
| Metric Size | Letter Size | |
| 5 mm | .1968 | .3020 |
| 6 mm | .2362 | .3180 |
| 7 mm | .2756 | .3230 |
What size is a number 2 drill bit?
Downloadable versions:
| Drill size | Diameter (in) | Diameter (mm) |
|---|---|---|
| 2 mm | 0.0787 | 2.0000 |
| #46 | 0.0810 | 2.0574 |
| #45 | 0.0820 | 2.0828 |
| 2.1 mm | 0.0827 | 2.1000 |
What is a 9/16 drill bit equivalent to?
0.5625
Jobber Length Drill Bit Chart
| Fractional Sizes | Decimal Equivalent (Inches) | Flute Length (Inches) |
|---|---|---|
| 33/64” | 0.5156 | 4-13/16” |
| 17/32” | 0.5312 | 4-13/16” |
| 35/64” | 0.5469 | 4-13/16” |
| 9/16” | 0.5625 | 4-13/16” |
What number is a 1/4 inch drill bit?
| Drill Bit Hole Diameters | ||
|---|---|---|
| Metric Size | Fractional Size | |
| 5 mm | .1968 | 7/32 |
| 6 mm | .2362 | 15/64 |
| 7 mm | .2756 | 1/4 |
What size is a No 12 drill bit?
6.5mm x 105mm
6.5mm x 105mm Masonry Drill Bit No. 12.
What size is a number 19 drill bit?
Jobber Length Drill Bit: #19 Drill Bit Size, 2 1/8 in Flute Lg, 3 1/4 in Overall Lg. Country of Origin USA. Country of Origin is subject to change. Wire-size drill bits come in standard sizes that correspond to American Wire Gauge (AWG) sizes.
What size is a #8 drill bit?
Drill Bit Sizes for a #8 Screw
| Screw Size | Drill Hole Size for Softwood | Drill Hole Size for Hardwood |
|---|---|---|
| #6 | 5/ 64” | 3/ 32” |
| #7 | 3/ 32” | 3/ 32” |
| #8 | 3/ 32” | 1/ 8” |
| #9 | 3/ 32” | 1/ 8” |
What size is a number 25 drill bit?
For precise sizes that fall between standard fractional drill sizes.
Wire Gauge (Number) M2 High-Speed Steel Drills – Premium Swift Bore®
| Product No. | 01425 |
|---|---|
| Drill Size | No. 25 |
| Decimal Inches | 0.1495 |
What size is a #1 drill bit?
What size is a number 9 drill?
What size is a number 27 drill bit?
Jobber Length Drill Bit: #27 Drill Bit Size, 0.1440, 39.00 mm, 4.00 mm, 71.00 mm, Wire.
What size is number 30 drill bit?
Jobber Length Drill Bit: #30 Drill Bit Size, 1 5/8 in Flute Lg, 2 3/4 in Overall Lg. Country of Origin USA.