Pluto 1.5/8 X 2 X 9 X 4 X 15/16 Inch Counter Bores With Taper Shank

The Pluto 1.5/8 X 2 X 9 X 4 X 15/16 Inch Counter Bores with Taper Shank is a high-precision cutting tool designed for counterboring operations. Counterboring is used to enlarge the upper portion of a hole to create a flat-bottomed recess, usually to allow a countersunk bolt or screw to sit flush or below the surface of the workpiece. This counterbore is ideal for applications where a smooth and accurate recessed hole is required, such as in machinery, automotive, and aerospace manufacturing.

Key Features:

1. Counterbore Diameter (1.5/8 inches):
   • The cutting diameter of the counterbore is 1.5/8 inches (approximately 41.28 mm). This diameter is suitable for creating a large, flat-bottomed recess in medium to large-sized components, allowing fasteners (such as bolts or screws) to sit flush with the surface. This is commonly used for machine parts, flange fittings, and other assemblies requiring a recessed hole for fasteners.
2. Overall Length (9 inches):
   • The overall length of 9 inches (approximately 228.6 mm) ensures that the counterbore can reach deeper into workpieces or large components, making it ideal for situations where the fastener needs to be seated deep within a part or when working with thicker materials. This length also provides additional tool rigidity, allowing for more precise and stable cutting.
3. Flute Length (2 inches):
   • The flute length is 2 inches (approximately 50.8 mm). The flute length is the cutting portion of the tool, and it plays a crucial role in removing the material efficiently. The flute length is appropriate for cutting deep counterbores while maintaining good chip evacuation and preventing clogging.
4. Shank Size (15/16 inches):
   • The shank size is 15/16 inches (approximately 23.81 mm), which provides a secure fit in the tool holder. This size ensures that the tool can be used in a wide variety of machine tool setups, including drill presses and CNC machines, offering excellent tool stability during operation.
5. Shank Type (Taper Shank):
   • The counterbore features a taper shank design, which allows it to fit securely into machines with tapered tool holders (such as Morse taper or similar). The taper shank ensures a tight, vibration-free fit, enhancing tool performance and cutting stability, especially during high-speed machining operations. This design also facilitates easy installation and removal of the tool from the machine.
6. Material and Hardness:
   • The counterbore is typically made from high-speed steel (HSS) or carbide, ensuring excellent wear resistance, strength, and heat tolerance. These materials allow the tool to maintain sharpness and cutting efficiency even under heavy use or when machining harder materials.
7. Precision Cutting:
   • The counterbore is designed to provide accurate hole dimensions and a flat-bottomed recess. This ensures that fasteners sit properly, with the top of the bolt or screw seated flush with or below the surface, improving both the aesthetic and functional performance of the final part.

Applications:

1. Machinery and Equipment Manufacturing:
   • This counterbore is commonly used in machinery manufacturing for enlarging holes to fit bolts, screws, or fasteners. It is ideal for flange fittings, mounting holes, and other applications where a recessed hole is required for fastening components together.
2. Automotive Industry:
   • In the automotive industry, counterbores are essential for creating proper recesses for fasteners in engine components, chassis, or other assemblies where components are bolted together. The Pluto counterbore ensures that fasteners sit flush or slightly below the surface, providing both aesthetics and functionality.
3. Aerospace:
   • In the aerospace industry, counterbore tools like this one are used for precise hole preparation in aircraft parts, structural components, and fastener holes. Given the high accuracy required in aerospace manufacturing, the tool ensures that fasteners fit securely and flush, contributing to the safety and integrity of the assembled components.
4. Tooling and Molds:
   • Counterbores are used in tooling, mold making, and die manufacturing to ensure that fasteners are seated correctly and securely in mold bases, dies, or assembly fixtures. The flush mounting of fasteners is particularly important in molds to ensure smooth, precise movements of components.
5. Custom Fabrication:
   • In custom fabrication, this tool is essential for creating holes in fabricated metal or composite parts that require a flat-bottomed recess for mounting or securing fasteners. The tool is useful in industries such as construction, general machining, and metalworking.

Benefits:

• High Precision: The Pluto counterbore provides precise, accurate cuts for creating flush recesses for fasteners. It ensures that holes are perfectly sized and the recess is flat-bottomed, offering a smooth and functional finish to machined parts.
• Durability: Constructed from high-speed steel (HSS) or carbide, the counterbore is highly resistant to wear and heat, ensuring that it maintains cutting efficiency over a long tool life. These materials are perfect for machining hard metals or for use in high-speed operations.
• Efficient Chip Removal: The flute design of the counterbore ensures that chips are effectively removed during the cutting process. This reduces the likelihood of material buildup, prevents overheating, and allows the tool to maintain consistent cutting performance.
• Stable Cutting Performance: The taper shank design provides a secure fit in the machine holder, ensuring stable, vibration-free cutting. This is critical for maintaining high accuracy and preventing errors due to tool deflection or instability.
• Versatility: This counterbore is ideal for a wide range of applications, including machinery manufacturing, automotive, aerospace, tooling, and general metalworking. Its ability to create accurate, flat-bottomed recesses makes it a versatile tool in many different industries.

Conclusion:

The Pluto 1.5/8 X 2 X 9 X 4 X 15/16 Inch Counter Bores with Taper Shank is an essential tool for precise counterboring in a variety of manufacturing industries. With its high precision, durability, and secure taper shank fit, this tool is designed to create accurate, flat-bottomed recesses for fasteners, ensuring that bolts, screws, or other fasteners are seated flush with the surface. Whether used in machinery, automotive, aerospace, or custom fabrication, this counterbore offers reliable performance and high-quality results in deep and accurate hole enlarging applications.

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