## What are number sizes on 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 is the decimal size of a drill?

DECIMAL EQUIVALENTS

DRILL SIZE | DECIMAL EQUIVALENT |
---|---|

3/64″ | .0469 |

1.20mm | .0472 |

1.25mm | .0492 |

1.30mm | .0512 |

**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’s the decimal equivalent of a number 7 drill?**

A number 7 drill bit is 0.2010 inches. As a fraction, the 0.2010 decimal is 201/1000.

### What size is a 0.2 drill bit?

Standard metric drill bit sizes

Drill size | Diameter (in) |
---|---|

0.1 mm | 0.0039 |

0.2 mm | 0.0079 |

0.3 mm | 0.0118 |

0.4 mm | 0.0158 |

### What size is a #45 drill bit?

Drill Bit Size Chart

Size | Decimal Equivalent | Decimal Equivalent |
---|---|---|

.44 mm | 0.0173 | 0.1476 |

.45 mm | 0.0177 | 0.1495 |

77 | 0.018 | 0.1496 |

.46 mm | 0.0181 | 0.152 |

**What size is #40 drill bit?**

Drill Bit Size Chart

Size | Decimal Equivalent | Size |
---|---|---|

79 | 0.0145 | 28 |

.38 mm | 0.015 | 9/64″ |

1/64″ | 0.0156 | 3.60 mm |

.40 mm | 0.0157 | 27 |

**What drill bit is 7mm?**

Metric Tap and Drill Bit Size Table

Tap | Metric Drill | US Drill |
---|---|---|

6mm x 1.0 | 5.2mm | – |

7mm x 1.0 | 6.1mm | 15/64″ |

8mm x 1.25 | 6.9mm | 17/64″ |

8mm x 1.0 | 7.1mm | – |

#### What size is a 7mm drill bit?

#### What size is a #33 drill bit?

Drill Bit Size Chart

Size | Decimal Equivalent | Size |
---|---|---|

91 | 0.0083 | 35 |

90 | 0.0087 | 2.80 mm |

89 | 0.0091 | 34 |

88 | 0.0095 | 33 |

**What size is a #60 drill bit?**

Downloadable versions:

Drill size | Diameter (in) | Diameter (mm) |
---|---|---|

#62 | 0.0380 | 0.9652 |

#61 | 0.0390 | 0.9906 |

1 mm | 0.0394 | 1.0000 |

#60 | 0.0400 | 1.0160 |

**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 standard drill bit?

This final drill chart covers the standard bit sizes from 43/64 to 1 27/64. More About Drill Bit Sets and Sizing Some other helpful information to help you in your knowledge of drill bit sizes: Fractional Sizing Fractional sizing uses whole, half (1/2), quarter (1/4), eighth (1/8), sixteenths (1/16) and sixty-fourths (1/64).

## What size is a number 8 drill bit?

Thus, drill bit #8 is on the larger side of your standard drill set. Here we will give you drill bit #8 in decimal inches, drill bit #8 in fractional inches, and drill bit #8 in decimal millimeters (mm). The purpose of this page is to give you an alternate drill bit (approximate equivalent) to drill bit gauge size Number 8 (#8).

**What are drill bits sizes?**

Installer bits are designed for installing wiring.