Drill Bits

Durable Drill Bits for All Your Drilling Needs

What are Drill Bits?

Drill bits are specialized cutting tools used to create holes in a variety of materials. They are used in a variety of applications, such as in construction, repair, and machining. Drill bits are typically made of metal and can be bought in a variety of sizes and shapes.

Drill bits are specifically designed to cut through hard materials such as wood, metal, and stone. The tip of a drill bit is usually sharp, and it is this point that is used to create a hole in the material. The shape and size of the tip can vary depending on the type of material that is being cut, and the size of the hole that needs to be created.

When using a drill bit, it is important to use the correct speed and pressure, as the wrong speed and pressure can damage the drill bit and the material being worked on. In addition, the type of drill bit should be chosen according to the material that is being cut and the desired finish of the hole.

Drill bits are an important part of any toolbox and are used for a variety of tasks. From drilling holes into wood for furniture, to cutting through metal for industrial machinery, drill bits are essential to many industries and professions.

Types of Drill Bits

Drill bits are cutting tools used to create holes in a variety of materials. Based on the type of material and the desired finished product, there are several types of drill bits to consider. The most common include twist drill bits, counterbore drill bits, countersink drill bits, flat bottom boring drill bits and specialty drill bits such as glass and tile drills, masonry drills.

Twist drill bits

Twist drill bits are the most common type of drill bit and are used for drilling into wood, metal, and plastic. They are available in a variety of sizes and are often used to create pilot holes for larger screws or bolts. The tip of the twist drill bit is bevelled and has a spiral flute along the length of the drill bit. The spiral flute allows the material to be chipped away as the bit is rotated in the workpiece.

Counterbore drill bits

Counterbore drill bits are used to create a larger hole than the existing hole. They have a cylindrical shape and are available in a variety of sizes and shapes. They are typically used to countersink screws or bolts, allowing them to sit flush with the surface of the material.

Countersink drill bits

Countersink drill bits are used to create a recess for screws and bolts in workpieces. They have a conical shape and come in a variety of sizes and angles. Countersink drill bits are typically used to hide the head of the screw or bolt so that it is flush with the workpiece.

Flat bottom boring drill bits

Flat bottom boring drill bits are used to create holes in materials at a precise depth. They have a flat bottom, which allows them to create a perfect 90-degree angle in the material. These types of drill bits are often used to create precise holes in wood, metal, or plastic.

Specialty drill bits

Specialty drill bits are used for drilling into materials such as glass, tile, or masonry. Glass and tile drill bits are typically made of diamond or carbide and are used to drill into materials that are harder than wood or metal. Masonry drill bits are made of carbide or tungsten and are used to drill into materials such as brick, cement, or stone.

Types of Twist Drill bits (based on tip styles)

Twist drill bits are one of the most important tools used in drilling operations. There are several different types of twist drill bits available, each of which is designed for a specific purpose and provides a different level of performance. Depending on the material being drilled, the desired result and the experience of the user, different types of twist drill bits may be used. The most common types of twist drill bits are classified based on the shape of their tip. These include the conventional drill point, split drill point, v-point, brad point, fishtail point, and taper point.

Conventional drill point

Conventional drill point is the most basic and commonly used type of twist drill bit. It features a symmetrical, conical shape and typically has two cutting lips, which make it well-suited for drilling most types of materials. It is also relatively inexpensive, making it a popular choice for most DIYers.

Split drill point

Split drill point has a unique “V” shaped tip that is designed to cut through harder materials more efficiently. Its design also helps to reduce the risk of drill breakage, making it an ideal choice for tougher drilling jobs.

V-point twist drill bit

V-point twist drill bit has a unique “V” shaped tip that is designed to cut through harder materials more efficiently. Its design also helps to reduce the risk of drill breakage, making it an ideal choice for tougher drilling jobs.

Brad point twist drill bit

Brad point twist drill bit also known as a dowel point, has a distinctive ‘spoon’ shaped tip designed to provide precise holes with minimal risk of drill breakage. This is particularly useful for drilling into softer materials, as the spoon shape helps to guide the drill and reduce the risk of the bit wandering off course.

Fishtail point twist drill bit

Fishtail point twist drill bit is similar in design to the brad point, but with a more tapered, ‘fish tail’ shaped tip. This increases the cutting surface of the drill, making it well suited for drilling into softer materials.

Taper point twist drill bit

Taper point twist drill bit is the most advanced type of twist drill bit, and is designed to provide precise, high-quality holes without the need for excessive pressure. It has a tapered tip that gradually increases in diameter and is designed to guide the drill bit for greater accuracy and reduce the risk of drill breakage.

Factors to consider while selecting the right Drill Bit

When it comes to drilling holes, having the right drill bit is key. There are many factors to consider when selecting the right drill bit, including material, type, coating, angle and length.

Drill bit material is one of the most important factors to consider. Options include high-speed steel (HSS), cobalt, carbide, titanium, and diamond. HSS drill bits are the most common and are suitable for soft materials such as wood and plastic. Cobalt drill bits are more expensive but are more heat resistant than HSS and better suited for harder materials such as stainless steel. Carbide drill bits are the hardest and most expensive, but they are more suitable for harder materials such as ceramic and stone. Titanium drill bits are the most expensive and are more suitable for softer materials such as aluminium. Diamond drill bits are the most expensive, but they are the best choice for drilling in hard materials such as glass and tile.

The type of drill bit is also an important factor. Common types include twist drill bits, spade drill bits, masonry drill bits and step drill bits. Twist drill bits are the most common and are used for most drilling projects. Spade drill bits are better suited for softwoods and plastics. Masonry drill bits are used for drilling into brick and concrete, while step drill bits are used for drilling larger holes in metals.

Drill bit coatingis also important. Common coatings include titanium nitride (TiN), titanium aluminum nitride (TiAIN) and diamond-like carbon (DLC). TiN is the most common coating and is suitable for most general-purpose drilling. TiAIN is more heat-resistant and is better suited for harder materials. DLC is the most heat-resistant and is best for drilling at high speeds.

The angle of the drill bit is also a factor to consider. The most common angle is 118 degrees, but other angles are available, such as 135 degrees and 90 degrees. Different angles are used for different applications, so it's important to know the right angle for the job.

Finally, the length of the drill bit is important. Longer drill bits provide more leverage and are better suited for deeper holes, while shorter drill bits are more manoeuvrable and better suited for shallow holes. It’s important to select the right length of drill bit for the job.

In conclusion, when selecting the right drill bit, it’s important to consider the material, type, coating, angle and length of the drill bit. Choosing the right drill bit for the job can help ensure the best results.

Selecting the right drill bit based on drilled material

When it comes to selecting the right drill bit for the job, it is important to consider the material you are drilling into and the type of bit that will best suit the application.

Auger drill bits

Auger drill bits are designed for drilling into dry, hard wood and can penetrate quickly and easily.

Spade drill bits

Spade drill bits are best for drilling into wood, as they have a wide blade that allows for better clearance.

Cobalt drill bits

Cobalt drill bits are designed for drilling into high tensile metals like stainless steel, cast iron and bronze, and can withstand the tough environment.

Twist drill bits

Twist drill bits are the most used in cordless drills, and can drill into metals, wood and plastic.

Masonry drill bits

Masonry drill bits are specifically designed for drilling into stone, concrete and brick and have a tungsten carbide tip that allows them to penetrate even the toughest surfaces.

Step drill bits

Step drill bits are designed to drill into any surface, while reduced shank drill bits are great for drilling into wood, plastic and metals.

Brad point drill bits

Finally, Brad point drill bits are perfect for drilling into all types of wood. With so many different types of drill bits available, it is important to select the right one for the job at hand to make sure you get the results you need.

Top Brands in Drill Bits in India

L&T-SuFin has one of the most reliable suppliers in the market for drill bits that are in high demand. They provide a wide range of Bosch, HIKOKI, and Makita drill bits for all types of drilling. These products are manufactured with high-quality materials and precision engineering to ensure long-lasting durability and reliability. Their products have been tested and certified by international standards organizations such as NEN (Dutch Standardization Institute), ISO 9001:2015 (International Quality Management System) and UL approval (Underwriters Laboratories).

Bosch drill bits

Bosch drill bits

from L&T-SuFin come with special OptiDrill coating that protects against corrosion, reduces friction between bit surface and material being drilled and increases longevity. This also helps increase drilling speeds while providing better chip evacuation for faster hole production. With its robust design, these drill bits can be used on steel up to 10mm thick. Additionally, they feature a 135° split point tip which ensures fast starts without any walking or slipping during use ensuring accuracy when drilling into metal objects.

HIKOKI Drill Bits

HIKOKI Drill Bits

are designed to cut faster than conventional drills due to their unique shape and abrasive surfaces on the cutting edges which increase chip removal rates resulting in time saving when completing tasks quickly. The double flute design ensures low vibration operation reducing noise levels during use making them safer than traditional drills as well as more comfortable for the user over long periods of usage by reducing fatigue experienced during use. The cross serrations on the cutting edge further reduce vibrations allowing tighter control when working at higher speeds allowing you to achieve maximum performance when using these tools

Makita Drill Bits

Finally there’s

Makita Drill Bits

that offer increased efficiency compared to other brands while still having great resistance against wear & tear. These Makita Drill Bits feature a polished head that eliminates digging into surrounding material while increasing torque transfer so you can get through tough jobs quickly with minimal effort required from yourself. In addition, they also have a self-centering tip design which would allow users accurate hole placement every single time no matter what type of material you’re working with whether it be wood or metal making them incredibly versatile tools perfect for just about any job!

Other brands available on L&T-SuFin are Addison Drill Bits and Miranda Drill Bits. They are known for their high quality and performance.
 

Drill Bit FAQs –

1. What are drill bits?

Drill bits are cutting tools used to make cylindrical holes in materials such as wood, metal, and plastic. They come in a range of sizes, shapes, and materials and are typically used in power drills, although they can also be used in manual hand drills.

2. What is the difference between a twist drill bit and a spade drill bit?

Twist drill bits are designed with a pointed end, which is used to create a hole by rotating the bit and applying pressure. Spade drill bits, on the other hand, are designed with a flat, scoop-shaped end and work by pushing the bit forward and pulling it back, rather than rotating it.

3. What is the best type of drill bit for wood?

High-speed steel (HSS) twist drill bits are typically the best choice for drilling into wood. They are durable, retain their sharpness, and can drill clean holes without splitting the wood.

4. What is the best type of drill bit for metal?

Carbide-tipped twist drill bits are the best choice for drilling into metal. These bits are much harder than HSS twist drill bits, which means they can withstand the high temperatures generated during drilling, and they have sharper points for more precise drilling.

5. How do you sharpen a drill bit?

The easiest way to sharpen a dull drill bit is to use a bench grinder. Start by mounting the drill bit in the grinder and slowly rotating it until the edges of the flutes are sharpened. Then, use a fine-grit stone to hone the cutting edge and make sure it is sharp.

6. How do you choose the right drill bit size?

Choosing the right drill bit size depends on the material you’re drilling into and the size of the hole you need to create. It’s important to choose a bit that is slightly larger than the hole you need to create. This will ensure that the bit does not become stuck in the material.