Drill Bit Hole Diameters | ||
---|---|---|

Metric Size | Fractional Size | |

15 mm |
.5906 | 3/8 |

16 mm | .6299 | 25/64 |

17 mm | .6693 | 13/32 |

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What is the equivalent fraction to 3/8?

The fraction** 6 16** is equal to 3 8 when reduced to lowest terms. To find equivalent fractions, you just need to multiply the numerator and denominator of that reduced fraction (3 8) by the same natural number, ie, multiply by 2, 3, 4, 5, 6 … Important: 3 8 looks like a fraction, but it is actually an improper fraction.

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What size is a standard drill bit?

Some applications require specific drill bit sizes, but a bit set with sizes ranging from 1/16 inch to 1/4 inch can cover a wide range of tasks around the house and workshop. If necessary, bigger bits (5/16-inch, 3/8-inch, 7/16-inch, and 1/2-inch) can be added. Bit sizes are usually printed on the shank of the drill bit.

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What size is a number 8 drill bit?

What Size Drill Bit Do I Use for #8 Screw? A 1/8” straight jobber drill bit will provide a reliable pilot hole for the 0.164” diameter of a #8 screw. It’s a suitable drill bit size for working with hardwoods like oak, maple, or walnut and materials with similar properties.

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How to determine drill bit size for screw?

- In order to determine the drill bit size, consider using a drill bit size card. …
- Make sure you have your drill bit securely connected to the chuck. …
- Keep your drill bits organized so that you can more quickly and efficiently select the one you want. …
- When working with wood, do not use a bit exactly the size of the hole you want to make. …

What size is a 3/8 drill?

3/8 inch is the maximum shaft diameter that fits in the chuck. That doesn’t mean you can’t drill larger holes, but the part the drill chuck grips has to be this size or smaller. (Some higher-powered drills have half -inch chucks.)

What is a 5/16 drill bit equal to?

5/16 converts to 10/32.

What size hole do you drill for a 3/8 screw?

Screw Size-TPIRecommended Hole DiameterDrill Bit Size1/4-200.2280″#15/16-180.2900″L3/8-160.3580″T1/2-130.4531″29/64″9 more rows

What is the next size up from 3/8 drill bit?

Drill Bit Hole DiametersMetric SizeFractional Size13 mm.511811/3214 mm.551223/6415 mm.59063/877 more rows

What happens if you don’t have a right size drill bit?

Choose the right size drill bit. If you are creating a pilot hole for a nail, the right drill bit is slightly smaller than the nail’s shank. If you are creating a pilot hole for a screw, the drill bit should be the same size as the body of the screw—not including the threads.

How do you match a drill bit to a screw?

0:525:57EZ Match Bit & Screw Guide – YouTubeYouTubeStart of suggested clipEnd of suggested clipLook for a bit that can be inserted into the hole just next to the screw you’ve chosen. This bit isMoreLook for a bit that can be inserted into the hole just next to the screw you’ve chosen. This bit is too. Small. This bit is too. Large ah that’s it looks like we’ve got a match it’s a 7 64th inch.

How do you drill a 3/8 hole in wood?

1:041:58How To Drill Clean Holes In Wood | Two Minute Tuesday – YouTubeYouTubeStart of suggested clipEnd of suggested clipSo you can do with the spade. Bit. So when they drill halfway through until the point comes throughMoreSo you can do with the spade. Bit. So when they drill halfway through until the point comes through on the other. Side. You know it is and then most going to pop it in this side and drill. Gently.

What is the measurement of drill bits?

Drill bits are available in different materials, lengths, and diameters. Most are measured by the** metric units ** and in the USA it’s imperial units. Drill bit diameter is the most important factor in the drilling process and it should know precisely as much as possible to sharpen or tolerate the diameter.

How many mm is 1 inch?

1 inch is equal to** 25.4 ** mm. By dividing the inches other fractions are introduced. Inches are really popular in the USA but beyond that mostly used the SI units. So we have to interchange the metric units and imperial units.

What size drill bits are available?

The price and availability of particular size bits does not change uniformly across the size range. Bits at size increments of** 1 mm ** are most commonly available, and lowest price. Sets of bits in 1 mm increments might be found on a market stall. In 0.5 mm increments, any hardware store. In 0.1 mm increments, any engineers’ store. Sets are not commonly available in smaller size increments, except for drill bits below 1 mm diameter. Drill bits of the less routinely used sizes, such as 2.55 mm, would have to be ordered from a specialist drill bit supplier. This subsetting of standard sizes is in contrast to general practice with number gauge drill bits, where it is rare to find a set on the market which does not contain every gauge.

What is the most common drill bit size?

In the U.S., fractional inch and gauge drill bit sizes are in common use. In nearly all other countries,** metric ** drill bit sizes are most common, and all others are anachronisms or are reserved for dealing with designs from the US. The British Standards on replacing gauge size drill bits with** metric size **s in the UK was first published in 1959.

What size drill bit should I use for straight shank?

ANSI B94.11M-1979 sets size standards for jobber-length straight-shank twist drill bits from** 1/64 inch ** through 1 inch in 1/64 inch increments. For Morse taper -shank drill bits, the standard continues in 1/64 inch increments up to 1¾ inch, then 1/32 inch increments up to 2¼ inch, 1/16 inch increments up to 3 inches, 1/8 inch increments up to 3¼ inches, and a single 1/4 inch increment to 3½ inches. One aspect of this method of sizing is that the size increment between drill bits becomes larger as bit sizes get smaller: 100% for the step from 1/64 to 1/32, but a much smaller percentage between 1 47/64 and 1 3/4.

What is fractional drill bit?

Fractional-inch drill bit sizes.** Fractional drill bit set by Craftsman. Fractional-inch drill bit sizes are still in common use in the United States and in any factory (around the globe) that ** makes inch-sized products for the U.S. market.

What is a jobber drill?

The term jobber refers to** a wholesale distributor —a ** person or company that buys from manufacturers and sells to retailers. Manufacturers producing drill bits “for the trade” (as opposed to for specialized machining applications with particular length and design requirements) made ones of medium length suitable for a wide variety of jobs, because that was the type most desirable for general distribution. Thus, at the time that the name of jobber-length drill bits became common, it reflected the same concept that names like general-purpose and multipurpose reflect.

What is the tolerance for smaller drill bits?

In smaller sizes, bits are available in smaller diameter increments. This reflects both the smaller drilled** hole diameter ** tolerance possible on smaller holes and the wishes of designers to have drill bit sizes available within at most 10% of an arbitrary hole size.

What is a drill bit?

Drill bits are** the cutting tools of drilling machines. ** They can be made in any size to order, but standards organizations have defined sets of sizes that are produced routinely by drill bit manufacturers and stocked by distributors.