| Model No. | Flute Diameter (mm) | Angle (mm) | Shank Diameter (mm) | Overall length (mm) |
| D1*90°*D4*50 | 1 | 90° | 4 | 50 |
| D1.5*90°*D4*50 | 1.5 | 90° | 4 | 50 |
| D2*90°*D4*50 | 2 | 90° | 4 | 50 |
| D2.5*90°*D4*50 | 2.5 | 90° | 4 | 50 |
| D3*90°*D4*50 | 3 | 90° | 4 | 50 |
| D3.5*90°*D4*50 | 3.5 | 90° | 4 | 50 |
| D4*90°*D4*50 | 4 | 90° | 4 | 50 |
| D5*90°*D5*50 | 5 | 90° | 5 | 50 |
| D6*90°*D6*50 | 6 | 90° | 6 | 50 |
| D8*90°*D8*60 | 8 | 90° | 8 | 60 |
| D10*90°*D10*75 | 10 | 90° | 10 | 75 |
| D12*90°*D12*75 | 12 | 90° | 12 | 75 |
| D14*90°*D14*100 | 14 | 90° | 14 | 100 |
| D16*90°*D16*100 | 16 | 90° | 16 | 100 |
| D20*90°*D20*100 | 20 | 90° | 20 | 100 |
Carbide spot drills are primarily made from tungsten carbide, a hard and heat-resistant material. This composition allows them to maintain their cutting edge for extended periods, even at high temperatures.
Carbide spot drills are extremely hard, making them suitable for cutting tough materials like steel, stainless steel, cast iron, and non-ferrous metals.
These drills are designed for precise and accurate hole or indentation placement. They are often used for tasks such as centering holes for subsequent drilling or tapping operations.
Carbide spot drills typically have a chamfered or conical tip. This design helps in initial hole creation and reduces the likelihood of the drill bit wandering or slipping during the machining process.
Many carbide spot drills have multiple flutes (usually two or three). The flutes help in chip evacuation, reducing heat buildup and ensuring a cleaner cut.
Some carbide spot drills come with specialized coatings, such as TiN (Titanium Nitride) or TiAlN (Titanium Aluminum Nitride), which further enhance their performance by reducing friction, extending tool life, and improving chip flow.
Carbide spot drills may come with different shank styles, including straight shanks and tapered shanks. The choice of shank style depends on the specific application and the type of machine being used.
These drills are versatile and can be used in various machining operations, including drilling, chamfering, countersinking, and deburring.
Carbide spot drills have a longer lifespan compared to traditional high-speed steel (HSS) drills, reducing the frequency of tool changes and downtime.
They are compatible with a wide range of machining equipment, including milling machines, lathes, and CNC machines.
Carbide spot drills come in various sizes and diameters to accommodate different hole dimensions and machining requirements.
While carbide spot drills are more expensive upfront compared to HSS drills, their extended tool life and superior performance often make them a cost-effective choice in the long run.
Carbide spot drills are extremely hard, thanks to their tungsten carbide composition. This hardness enables them to cut through tough materials like steel, stainless steel, and cast iron with ease, maintaining their cutting edge for extended periods.
Carbide spot drills have a significantly longer lifespan compared to traditional high-speed steel (HSS) drills. This longevity reduces tool change frequency and increases overall machining efficiency, ultimately saving time and money.
These drills are designed for precise hole placement and dimension accuracy. They excel in tasks like centering holes for subsequent drilling or tapping operations, ensuring that machined components meet tight tolerance requirements.
Carbide spot drills efficiently dissipate heat during cutting due to their superior heat resistance. This characteristic helps prevent workpiece distortion or damage caused by excessive heat buildup.
The hardness and wear resistance of carbide spot drills mean they maintain their sharpness even when subjected to challenging machining conditions. This reduces the need for frequent re-sharpening or replacement.
Carbide spot drills are versatile tools suitable for various machining operations, including drilling, chamfering, countersinking, and deburring. This versatility simplifies tool selection and inventory management.
Many carbide spot drills feature multiple flutes, which aid in efficient chip evacuation. This leads to cleaner cuts, reduced tool wear, and improved machining quality.
They can be used with a wide range of machining equipment, including milling machines, lathes, and CNC machines. This compatibility makes them a valuable asset in various manufacturing environments.
Carbide spot drills are available with specialized coatings like TiN (Titanium Nitride) or TiAlN (Titanium Aluminum Nitride). These coatings further enhance tool performance by reducing friction, extending tool life, and improving chip flow.
Despite their higher initial cost compared to HSS drills, carbide spot drills offer excellent cost efficiency over time. Their durability and reduced need for replacement translate into long-term cost savings.
Carbide spot drills provide consistent and repeatable results, ensuring that machined components meet quality standards and specifications consistently.
The purpose of applying a coating to a Carbide spot drills is to enhance its performance, durability, and overall effectiveness in various machining operations.
TiN is a popular coating choice for Carbide spot drills. It offers excellent wear resistance and provides a protective layer on the tool's surface, reducing friction and extending tool life. TiN coatings are effective when machining non-ferrous materials and can enhance performance in general-purpose milling applications.
TiCN coatings offer improved hardness and heat resistance compared to TiN. They are suitable for machining ferrous materials, including steel and cast iron. TiCN coatings provide excellent wear resistance, reduced friction, and increased tool life.
AlTiN coatings are known for their exceptional hardness, high-temperature resistance, and excellent wear resistance. They are suitable for machining abrasive materials, such as hardened steels and stainless steels. AlTiN coatings provide extended tool life and enhanced performance in high-speed machining applications.
DLC coatings offer excellent hardness, low friction, and high lubricity. They are effective when machining aluminum, copper, and non-ferrous materials. DLC coatings can reduce built-up edge and enhance the chip flow, resulting in improved surface finish and reduced cutting forces.
Carbide spot drills are often used to create accurate, shallow holes or depressions on a workpiece's surface. These spots serve as guides for subsequent drilling operations, ensuring that the drill bit starts in the desired location with improved accuracy and reduced chances of wandering or misalignment.
In metalworking, it's crucial to locate the exact center of a hole or workpiece. Carbide spot drills are excellent for centering because they can be precisely positioned to mark the center point for further machining operations like drilling, reaming, or boring.
When countersinking is required, carbide spot drills can be used to create a conical recess at the top of a hole. This recess allows screw heads or bolts to sit flush with the workpiece's surface, ensuring a clean and secure fit.
Carbide spot drills can also be employed for chamfering edges, which involves cutting a beveled edge or chamfer around the perimeter of a hole. Chamfering is often done to remove sharp edges, improve aesthetics, or facilitate assembly.
Spot drills are commonly used in conjunction with tapping operations. By using a spot drill to create a starting point for a tap, you can ensure that the threads are started accurately and securely in the center of the hole, reducing the risk of tap breakage and thread misalignment.
Carbide spot drills are useful for marking reference points on workpieces, aiding in proper alignment and fixturing during machining processes. This helps maintain precision and consistency in production.
Spot drills can be used to remove burrs or sharp edges left behind after machining or drilling operations, resulting in a smoother and safer workpiece.
In sheet metal fabrication, spot drills are valuable for creating pilot holes for fasteners, ensuring precise and secure attachment of components to the sheet metal.
Carbide spot drills are also used in aerospace and other industries that work with composite materials. They help create accurate starting points for drilling holes in composites, which can be delicate and prone to delamination.
Beyond these specific applications, carbide spot drills find utility in various general machining tasks where precise hole placement and starting points are critical to the overall quality of the workpiece.
A carbide spot drill is a cutting tool used in machining processes to create precise, shallow holes or depressions on the surface of a workpiece. It is typically made of solid carbide, a hard and durable material.
Carbide spot drills offer several advantages, including high hardness, wear resistance, and excellent heat resistance. They are capable of producing accurate and consistent holes, making them suitable for high-precision machining applications.
Carbide spot drills are designed specifically for creating shallow holes or spot-facing operations, whereas regular drill bits are meant for drilling deep holes. Carbide spot drills provide superior precision and surface finish compared to standard drill bits.
Carbide spot drills are suitable for a wide range of materials, including metals (e.g., steel, aluminum, titanium), plastics, and composites. They excel in machining materials that require high precision and surface quality.
Consider factors like the material to be machined, hole size and depth requirements, and the machine's capabilities. Consult the tool manufacturer's recommendations and cutting data charts for guidance.
Carbide spot drills are commonly used for chamfering, countersinking, spot facing, and deburring operations. They are essential in aerospace, automotive, medical, and other industries where precision machining is crucial.
To prolong their lifespan, carbide spot drills should be used with proper cutting speeds and feeds, and coolant or lubrication should be applied to reduce heat buildup. Regular inspection and re-sharpening may be necessary depending on usage.
Yes, many carbide spot drills can be resharpened or reconditioned by professional tool services. This can extend their usable life and maintain their cutting performance.
Common issues include tool breakage due to excessive force or improper feeds and speeds, poor surface finish, and premature wear. Proper tool selection and setup can help mitigate these problems.
Yes, we are facotry. Founded in 2004，Ruiyu Tools has established itself as a trusted provider of high-quality drill bits, end mills, and other non-standard tools.
Before purchasing, please contact us to confirm model No. and drawings to avoid any misunderstanding.
Yes.We can supply OEM&ODM and make customized design for any specific application.
We suggest you ording a sample. And you can also send us email with detailed photos and specifications for checking if you cannot get enough information in the product page.
Non-standard tools 5-10 Working days，Standard tools usually 1-2 days.
