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Find Out What Size a Number 43 Drill Bit Is and How to Use It in Your Power Drills

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Written By John Gibbs

 

 

 

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Are you curious about what size a number 43 drill bit is? If so, you’ve come to the right place. In this article, we’ll provide you with all the information you need to know about the size of a number 43 drill bit. We’ll explain how the size of the drill bit is determined and the various drill bit sizes that are available. We’ll also discuss what the number 43 drill bit is typically used for and the benefits of using this type of drill bit. By the end of this article, you’ll have a better understanding of what size a number 43 drill bit is.

What Size Is A Number 43 Drill Bit?

What Size Is A Number 43 Drill Bit?
A Number 43 Drill Bit is an imperial drill bit size that measures 0.0935 inches in diameter. It is a standard fractional size used primarily for drilling metal and other hard materials. The Number 43 Drill Bit is also known as a size 9 drill bit.

The Number 43 Drill Bit can be used with a range of different drill bit types, including twist drill bits, jobber length drill bits, and aircraft extension drill bits. It is also compatible with a number of different drill bit materials, such as high-speed steel, cobalt steel, and carbide-tipped drill bits.

When looking for a drill bit, it is important to check the size of the drill bit required for the job. Other than the Number 43 Drill Bit, it is also important to consider the size of a 55 mm Drill Bit for larger projects.

What Size is a 55 mm Drill Bit?

What Size Is A 55 Mm Drill Bit?

A 55 mm drill bit is equal to 2.165 inches in diameter, making it a #21 drill bit size. The fractional equivalent of 2.165 inches is 31/64, so this drill bit size is also referred to as a 31/64. This size is suitable for drilling materials such as wood and metal. It is also suitable for other materials such as plastic and composites, but should be used with caution to avoid damaging the material. Drill bits come in a variety of sizes to accommodate different types of materials, and the number 43 drill bit is one such size. It is equal to 1.693 inches in diameter, making it a #25 drill bit size. The fractional equivalent of 1.693 inches is 17/64, so this drill bit size is also referred to as a 17/64. This size is suitable for drilling materials such as wood, metal, and plastic. It is also suitable for other materials such as composites, but should be used with caution to avoid damaging the material. To answer the question ‘What number drill bit is 3/16?’ the answer is #10. This size is equal to 0.1875 inches in diameter, and is suitable for drilling materials such as wood, metal, and plastic. It is also suitable for other materials such as composites, but should be used with caution to avoid damaging the material.

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What Number Drill Bit is 316?

What Number Drill Bit Is 316?

The number 316 drill bit is a size of drill bit used in metalworking and woodworking activities, and is also known as a Fractional Drill Bit. It has a diameter of 1/8 inch (3.175 mm). The number 31 drill bit is a metric size and is equivalent to a 9.53 mm drill bit. It is important to note that the number 31 drill bit is the same size as the number 43 drill bit, which is an imperial measurement. Therefore, when looking to find out what size is a #31 drill bit, it is the same size as a number 43 drill bit.

What Size is a #31 Drill Bit

What Size Is A #31 Drill Bit

  • A #31 drill bit is a fractional size drill bit and is equivalent to a 0.1260 inch or 3.2mm drill bit.
  • It is commonly used to drill into metals and other hard materials.
  • It is most often used in the manufacturing of aircraft and other precision parts.
  • The #31 drill bit is slightly larger than a #30 drill bit and is typically used for larger holes.
  • It is also used in the construction of some electronic components and PCBs.
  • The #31 drill bit is not a standard size and is not typically found in most hardware stores.

Drill Bit Sizes Chart

Drill Bit Sizes Chart

A common question among DIYers is what size drill bit to use for a certain task. The answer to this question depends on the number of the drill bit, as each size has its own characteristics. To figure out what size a number 43 drill bit is, refer to the following drill bit sizes chart:

Number 43 Drill Bit: 0.092 inch (2.35mm)

Number 42 Drill Bit: 0.095 inch (2.41mm)

Number 41 Drill Bit: 0.098 inch (2.48mm)

Number 40 Drill Bit: 0.101 inch (2.56mm)

Number 39 Drill Bit: 0.104 inch (2.64mm)

Number 38 Drill Bit: 0.107 inch (2.72mm)

Number 37 Drill Bit: 0.110 inch (2.79mm)

Number 36 Drill Bit: 0.113 inch (2.87mm)

Number 35 Drill Bit: 0.116 inch (2.95mm)

Number 34 Drill Bit: 0.119 inch (3.02mm)

Number 33 Drill Bit: 0.122 inch (3.10mm)

Number 32 Drill Bit: 0.125 inch (3.18mm)

Number 31 Drill Bit: 0.128 inch (3.25mm)

Number 30 Drill Bit: 0.131 inch (3.33mm)

Number 29 Drill Bit: 0.134 inch (3.40mm)

Number 28 Drill Bit: 0.137 inch (3.48mm)

Number 27 Drill Bit: 0.140 inch (3.56mm)

Number 26 Drill Bit: 0.143 inch (3.63mm)

Number 25 Drill Bit: 0.146 inch (3.71mm)

Number 24 Drill Bit: 0.149 inch (3.78mm)

Number 23 Drill Bit: 0.152 inch (3.86mm)

Number 22 Drill Bit: 0.155 inch (3.94mm)

Number 21 Drill Bit: 0.158 inch (4.01mm)

Number 20 Drill Bit: 0.161 inch (4.09mm)

Number 19 Drill Bit: 0.164 inch (4.17mm)

Number 18 Drill Bit: 0.167 inch (4.24mm)

Number 17 Drill Bit: 0.170 inch (4.32mm)

Number 16 Drill Bit: 0.173 inch (4.40mm)

Number 15 Drill Bit: 0.176 inch (4.47mm)

Number 14 Drill Bit: 0.179 inch (4.55mm)

Number 13 Drill Bit: 0.182 inch (4.62mm)

Number 12 Drill Bit: 0.185 inch (4.70mm)

Number 11 Drill Bit: 0.188 inch (4.78mm)

Number 10 Drill Bit: 0.191 inch (4.85mm)

Number 9 Drill Bit: 0.194 inch (4.93mm)

Number 8 Drill Bit: 0.197 inch (5.00mm)

Number 7 Drill Bit: 0.200 inch (5.08mm)

Number 6 Drill Bit: 0.203 inch (5.16mm)

Number 5 Drill Bit: 0.206 inch (5.23mm)

Number 4 Drill Bit: 0.209 inch (5.31mm)

Number 3 Drill Bit: 0.212 inch (5.38mm)

Number 2 Drill Bit: 0.215 inch (5.46mm)

Number 1 Drill Bit: 0.218 inch (5.54mm)

Number 0 Drill Bit: 0.221 inch (5.61mm)

Number 00 Drill Bit: 0.224 inch (5.69mm)

Number 000 Drill Bit: 0.227 inch (5.77mm)

Number 0000 Drill Bit: 0.230 inch (5.84mm)

In conclusion, the answer to the question “What size is a number 43 drill bit?” is 0.092 inch (2.35mm).

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Differences between Number and Letter Drill Bits

Differences Between Number And Letter Drill Bits

Number drill bits are sized according to their diameter, and are typically measured in fractions of an inch, such as 1/16″ or 1/4″. Letter drill bits are sized according to their letter designation, and are typically measured in millimeters, such as “F” for 4.2 mm, or “T” for 3.3 mm. Number drill bits are used for general purpose drilling, while letter drill bits are used for precise and accurate drilling of smaller holes. Number drill bits are used in both hand and power drills, while letter drill bits are used mainly in power drills.

The size of a number 43 drill bit is equal to 0.0937 inches, or 2.37 mm.

Measuring Drill Bits

The size of a drill bit is measured in two ways. The first is a numbered size, such as 43. The second is a fractional size, such as 7/16 inch. To determine the size of a number 43 drill bit, use a vernier caliper or a drill bit gauge.

The vernier caliper is a tool that measures the outer diameter of the drill bit. It has a sliding jaw that can be adjusted to fit the bit. Measure the outer diameter of the bit in millimeters or inches and look up the corresponding drill bit size on a chart, such as the one below.

Number Drill Bit Size (mm) Drill Bit Size (Inches)

43 3.3mm 1/8″

Alternatively, a drill bit gauge can be used to measure the size of a drill bit. The gauge consists of a series of holes numbered from 1 to 60. Insert the drill bit into the corresponding hole to determine its size. If the bit fits into the number 43 hole, then it is a number 43 drill bit.

To ensure accurate measurements, always measure the drill bit when it is in its widest point. Clean the drill bit before measuring to remove any debris or burrs that may affect the measurement.

Choosing the Right Drill Bit

  • Different drill bits are used for different materials: Auger bits are used for woodworking, spade bits for metal, and masonry bits for concrete and brick.
  • Drill bit sizes are measured in fractions of an inch: Measurements include 1/16, 1/8, 3/16, 1/4, 5/16, 3/8, 7/16, and 1/2 inch.
  • Number and letter drill bit sizes vary: For example, #31 is equivalent to 1/8 inch, #43 is equivalent to 3/16 inch, #55 is equivalent to 5/16 inch, and #316 is equivalent to 1/4 inch.
  • Metric drill bit sizes are measured in millimeters: Common metric sizes include 3 mm, 4 mm, 5 mm, 6 mm, 8 mm, 10 mm, 12 mm, 14 mm, and 16 mm.
  • Drill bits are available in a variety of materials: Common materials include high-speed steel (HSS), cobalt, titanium, and carbide.
  • The best drill bits are made from high-speed steel: HSS bits are the most durable, and can be used for drilling into wood, metal, plastic, and other materials.

To answer the question what size is a number 43 drill bit, it is 3/16 inch. A 55 mm drill bit is 5/16 inch, a #31 drill bit is 1/8 inch, and a #316 drill bit is 1/4 inch.

Frequently Asked Questions

What are the Different Types of Drill Bit Sizes?

  • Letter Drill Bits – These are used for drilling through softer materials such as wood and plastic. Letter drill bits are measured in letters, with each size corresponding to a specific diameter. A number 43 drill bit is equivalent to a letter K.
  • Fractional Drill Bits – These are used for drilling through harder materials such as metal and masonry. Fractional drill bits are measured in fractions of an inch, with each size corresponding to a specific diameter. A number 43 drill bit is equivalent to a fractional size of 7/32-inch.
  • Metric Drill Bits – These are used for drilling through harder materials such as metal and masonry. Metric drill bits are measured in millimeters, with each size corresponding to a specific diameter. A number 43 drill bit is equivalent to a metric size of 3.2 mm.

What are the advantages of using a Drill Bit Size 43?

  • High Precision: Drill Bit Size 43 is designed for precision drilling. It allows for accurate drilling of tight holes and precise cutting around curved edges.
  • High Strength: Drill Bit Size 43 is made of high-grade steel, making it highly durable and resistant to wear and tear.
  • High Speed: Drill Bit Size 43 is designed to work at high speeds, making it ideal for high-volume drilling operations.
  • Easy to Use: Drill Bit Size 43 is easy to use and requires minimal setup time. It is also easily adjusted to different drilling depths.
  • Cost-effective: Drill Bit Size 43 is a cost-effective option for many drilling operations. It is also more affordable than larger drill bits.

How do I measure a drill bit size accurately?

  • Calipers and Gauge: Using calipers and gauge is the most accurate method of measuring drill bit size. Calipers are used to measure the diameter of the drill bit, while the gauge is used to measure its length.
  • Ruler: If you don’t have access to calipers or a gauge, you can also use a ruler to measure the drill bit size. Simply place the drill bit across the ruler and measure it against the markings on the ruler.
  • Drill Bit Measuring Chart: Another method of measuring drill bit size is to use a drill bit measuring chart. The chart has different sizes of drill bits plotted against the length and diameter. Simply match the length and diameter of your drill bit to the chart to determine its size.

Is a Size 43 Drill Bit Suitable for All Types of Materials?

No, a size 43 drill bit is not suitable for all types of materials. It is best suited for soft metals such as aluminum, brass, and copper, as well as wood and plastic. It should not be used on hard metals such as steel, cast iron, and titanium.

Are there any Safety Considerations to Keep in Mind when Using a Size 43 Drill Bit?

When using any drill bit, it is important to take safety precautions to avoid injury or damage. When using a size 43 drill bit, precautions should include wearing protective eyewear, gloves, and a face mask. It is also important to ensure that the drill bit is securely attached to the drill and that the drill is set to the correct speed for the material being drilled. Additionally, it is important to keep the drill bit sharp and lubricated to reduce the risk of injury, and to keep the drill bit away from any flammable materials.

Conclusion

A number 43 drill bit has a diameter of 0.094 inches, making it a #43 wire gauge drill bit. It is a very small drill bit and is best used for drilling small holes in materials such as wood, plastic and thin metals. It is not recommended for use in hard materials such as steel or concrete.

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About John Gibbs

Hello everyone! My name is John Gibbs. I am 60 years old and have been in the family construction business all my adult life. Construction is not only my profession but also my passion. I know everything about building and repair materials, tools, advanced methods, techniques, and approaches. I will share the same knowledge with you in my articles.

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