Product Specification

Custom Deep Hole Drilling Tools Carbide-Tipped Single-Fluted Step Drills

Product Introduction

Key Features

Carbide-Tipped Cutting Edge

• The carbide tip is the heart of the drill's cutting performance. Carbide is renowned for its outstanding hardness, ranking second only to diamond in some measures. This hardness allows the drill to effortlessly penetrate even the toughest materials, such as hardened steels, titanium alloys, and exotic metals. The carbide tip's wear resistance is also remarkable, ensuring a long service life. It can maintain its sharpness and cutting efficiency over an extended period of drilling operations, reducing the frequency of tool replacements. This not only saves costs but also minimizes production downtime. The precise geometry of the carbide tip is carefully crafted to optimize chip formation and evacuation. It is designed to produce small, well-defined chips that can be easily removed from the hole, preventing chip clogging and ensuring a smooth drilling process.
• The carbide used in the tip is of a high-grade quality, and its composition may be adjusted based on the specific material to be drilled. This customization ensures the best possible cutting performance and tool life for each application.

Single-Fluted Design

• The single-fluted design offers several significant advantages. Firstly, it provides excellent chip evacuation capabilities. With only one flute, there is a larger space available for the chips to travel along as they are removed from the hole. This is especially crucial in deep hole drilling, where chip clogging can lead to tool breakage and poor hole quality. The single flute allows for a more efficient coolant flow as well. The coolant can be directed precisely to the cutting edge, providing effective cooling and lubrication. This helps to reduce heat generation and friction, further enhancing the drill's performance and prolonging its life. The single-fluted design also results in a more stable drilling process. It reduces the vibration and chatter that can occur with multi-fluted drills, leading to more accurate hole diameters and better surface finishes.
• The flute geometry is optimized to ensure a smooth and continuous chip flow, and it is carefully matched with the carbide tip geometry to achieve maximum drilling efficiency.

Customizable Step Design

• These step drills offer a high degree of customization in terms of the step dimensions. The diameters and lengths of the steps can be precisely tailored to meet the specific requirements of the workpiece. For example, in the manufacturing of complex mechanical components, such as automotive engine parts or aerospace fittings, different step sizes may be needed for various features like bolt holes, bearing seats, or fluid passages. The ability to customize the step design allows for the creation of highly precise and functional holes in a single drilling operation, eliminating the need for multiple tools and additional machining steps. This not only improves productivity but also enhances the overall quality and accuracy of the final product.
• The transitions between the steps are carefully machined to be smooth and seamless, ensuring that there are no stress concentrations or irregularities in the hole that could affect the performance of the component.

Durable and High-Quality Construction

• The overall construction of the drill is built to last. The shank of the drill is made from a strong and rigid material, such as alloy steel, which provides a stable base for the carbide tip and ensures proper alignment during drilling. The connection between the shank and the carbide tip is engineered to be highly reliable, withstanding the high forces and stresses that occur during deep hole drilling. The surface finish of the drill is carefully controlled to minimize friction and heat generation. A smooth surface helps to improve chip evacuation and reduces the risk of tool wear and workpiece damage. The drill is manufactured to strict quality control standards, ensuring that each unit meets the highest levels of performance and reliability.
• The combination of the carbide tip, single-fluted design, and durable construction results in a drill that can withstand the rigors of continuous deep hole drilling operations and maintain its accuracy and efficiency over time.

Specification Details

• Application	nonferrous metals, Synthetic Materials & Graphite, Steel, iron, copper, aluminium, bronze, brass, plastic, aluminum alloy
  Drill Type	Carbide-tipped
  Shank Type	Whistle Notch
  Point Angle	142°, 118°, 144°, 135°, 140°, customized
  Surface Finish	High Temp/Hardness AlTiN, Multilayer TiCN/TiN, Bright(Uncoated), Diamond, Super Life TiAlN
  Customized support	OEM, ODM, OBM
  Product name	brazed gun drill
  Minimum dia	2mm
  Maximum dia	50mm
  Meterial	Carbide tip
  Size	As customers required
  Usage	Deep hole drilling
  Coating	Available
  Drill type	single-fluted gun drill
  OEM & ODM	Accpected
  Drill bar material	Steel

Application Scenarios

• In the aerospace industry, used for drilling holes in turbine engine components, such as discs and shafts, where precise stepped holes are required for cooling channels, mounting points, or fuel passages.
• The automotive industry benefits from these drills in manufacturing engine blocks, cylinder heads, and transmission parts. They can create holes with different diameters for valves, pistons, and other critical components in a single operation.
• In the machinery manufacturing sector, ideal for drilling holes in spindles, gears, and housings, where complex hole geometries with steps are needed for proper assembly and function.
• Also applicable in the medical device industry for creating holes in surgical instruments and implants, where high precision and quality are essential.

Installation and Maintenance

• Installation: The drill is installed in a CNC machine or a dedicated deep hole drilling machine following the manufacturer's instructions. The shank is properly inserted into the spindle and secured using the appropriate clamping mechanism. The coolant supply system is connected to the drill's coolant hole, ensuring a proper flow of cutting fluid.
• Maintenance: Regular inspection of the drill is necessary. Check for signs of wear on the carbide tip, such as chipping or dulling. Inspect the coolant hole for any blockages and clean it if required. The drill should be stored in a clean and dry environment to prevent corrosion. Lubricate the shank and other moving parts as recommended by the manufacturer. If the drill shows significant wear or damage, it should be replaced or reconditioned to maintain optimal performance.

Conclusion