Wholesale 5pcs/set long series center drills

Looking for wholesale 5pcs/set long series center drills? This guide explores everything you need to know, including types, materials, applications, and where to find the best deals. We'll cover the benefits of using long series center drills, how to select the right set for your needs, and factors that influence pricing. Whether you're a seasoned machinist or just starting out, this resource will help you make informed decisions.

Understanding Long Series Center Drills

Center drills, also known as Slocomb drills or combined drills and countersinks, are specialized tools used to create a conical hole for a lathe center in a workpiece. This hole provides a precise bearing point, ensuring accuracy during turning operations. Long series center drills are characterized by their extended length, offering advantages in specific applications.

What Makes Long Series Center Drills Different?

The primary difference between standard and long series center drills is their length. This extended reach allows them to access recessed areas or work on parts with complex geometries where a standard center drill would be too short. While the basic function remains the same, the extended length opens up new possibilities.

Common Applications of Long Series Center Drills

Long series center drills are particularly useful in the following scenarios:

• Deep Hole Centering: Creating center holes in workpieces where the drilling point is far from the edge.
• Accessing Recessed Areas: Centering on components with complex shapes or obstructions.
• Working with Longer Workpieces: Providing a stable starting point for drilling long pieces on a lathe.
• CNC Machining: Especially useful where tool changes need to be minimized and setups optimized.

Types of Center Drills Available in a 5pcs/set

When purchasing a wholesale 5pcs/set long series center drills, you'll typically find a variety of sizes within the set. The most common types are defined by their included angle of the countersink and their overall size designation.

Common Center Drill Types (based on countersink angle)

• 60-degree Center Drills: The most common type, offering a good balance between strength and support for the lathe center.
• 90-degree Center Drills: Provide a wider countersink, sometimes preferred for specific applications.

Size Designation (example: #1, #2, #3, #4, #5)

Center drill sizes are designated by numbers (e.g., #1, #2, #3, #4, #5). Higher numbers indicate larger drill and countersink diameters. A typical wholesale 5pcs/set long series center drills will contain a range of these sizes to accommodate various workpiece dimensions.

Here's a table illustrating typical dimensions for common center drill sizes, based on data from leading manufacturers:

Note: Dimensions may vary slightly depending on the manufacturer. Always consult the manufacturer's specifications for precise measurements.

Material Selection: HSS vs. Carbide

The two primary materials used in long series center drills are High-Speed Steel (HSS) and Carbide. Each offers distinct advantages and disadvantages.

High-Speed Steel (HSS)

HSS is a cost-effective option that provides good wear resistance. It's suitable for machining a wide range of materials, including mild steel, aluminum, and plastics. HSS drills are generally more forgiving than carbide, making them a good choice for general-purpose use and older machines.

Carbide

Carbide offers superior hardness and heat resistance compared to HSS. This allows for higher cutting speeds and longer tool life, particularly when machining abrasive materials like hardened steel, cast iron, and non-ferrous alloys. Carbide drills are more brittle and require rigid machine setups to avoid chipping or breakage. You can find high quality carbide center drills at Wayleading Tools.

Factors to Consider When Buying a Wholesale 5pcs/set

Choosing the right wholesale 5pcs/set long series center drills involves considering several factors to ensure you get the best value and performance.

Material of the Workpiece

The material you'll be machining is a primary factor. For softer materials like aluminum and mild steel, HSS drills are often sufficient. For harder materials, carbide is generally the better choice.

Required Precision

If high precision is critical, invest in high-quality center drills from reputable manufacturers. Look for drills with accurate grinding and consistent dimensions.

Machine Rigidity

Carbide drills require a rigid machine setup to prevent vibration and chatter. If your machine has excessive play or vibration, HSS drills may be a more suitable option.

Budget

HSS drills are generally less expensive than carbide. Consider your budget and the frequency with which you'll be using the drills.

Where to Buy Wholesale 5pcs/set Long Series Center Drills

You can find wholesale 5pcs/set long series center drills from a variety of sources, including:

• Online Retailers: Major online retailers offer a wide selection of center drills from various brands.
• Industrial Supply Companies: Companies specializing in industrial tools and equipment often offer competitive wholesale pricing.
• Direct from Manufacturers: Purchasing directly from manufacturers can sometimes offer the best prices, especially for large quantities. Wayleading Tools is a professional manufacturer.

Maintaining and Extending the Life of Your Center Drills

Proper maintenance can significantly extend the life of your long series center drills.

Proper Speed and Feed Rates

Using the correct speed and feed rates is crucial. Refer to machining charts or manufacturer recommendations for optimal settings based on the material you're machining.

Coolant Usage

Using coolant helps to dissipate heat and lubricate the cutting edges, reducing wear and tear. Choose a coolant appropriate for the material you're machining.

Sharpening

Regularly inspect your center drills for signs of wear or dullness. Sharpening them when necessary will maintain their cutting efficiency and prevent damage.

Storage

Store your center drills in a protective case or rack to prevent them from being damaged or dulled.

Conclusion

Choosing the right wholesale 5pcs/set long series center drills requires careful consideration of your specific needs and applications. By understanding the different types, materials, and factors involved, you can make an informed decision and ensure you get the best possible performance and value. Whether you choose HSS or carbide, remember that proper maintenance is essential for extending the life of your tools.