INTERNAL TOOL 85-6871 Counterbore Solid Carbide N/c .6875 11/16

( Brand: Internal Tool ), ( Manufacturer Part Number: 85-6871 ), ( Item Type: Counterbore ), ( Country Of Origin: United States )

Review INTERNAL TOOL N/c Counterbore .6875 Inch 11/16 Solid Carbide Tool#

The 85-6871 N/C Counterbore, model number 6875, is a solid carbide tool designed for high-performance CNC machining applications. This internal tool is specifically engineered for counterboring operations, allowing for the creation of accurate, perfectly sized counterbored holes.

Measuring 11/16 inches in length, this tool boasts a precision-ground, six-flute design for efficient chip evacuation and improved tool life. The solid carbide construction ensures exceptional rigidity, enabling the tool to withstand heavy cutting loads and maintain its sharp edge for extended periods.

The 85-6871 N/C Counterbore features a unique, tapered bore geometry. This design allows the tool to machine both the pilot hole and the counterbore in a single pass, enhancing process efficiency and reducing setup time. The tool's sharp, pointed tip ensures accurate alignment with the pilot hole, while its counterbore diameter is precisely calibrated to provide a perfect fit for common fastener sizes.

The 11/16 inch length of this tool caters to a wide range of applications, making it a versatile addition to any CNC machining setup. Its solid carbide construction and tapered bore geometry make it suitable for machining various materials, including aluminum, steel, and titanium.

This 85-6871 N/C Counterbore is coolant-through capable, enabling the continuous delivery of coolant directly to the cutting edge. This coolant supply maintains the tool's temperature during operation, reducing thermal stress and ensuring optimal cutting performance.

In conclusion, the 85-6871 N/C Counterbore, model number 6875, is a high-performance, solid carbide tool designed for precision counterboring operations. Its tapered bore geometry, six-flute design, and coolant-through capability make it an essential addition to any CNC machining setup, offering enhanced process efficiency, improved tool life, and superior cutting performance.

Pros and Cons of Buying an Internal Tool (85-6871 N/C Counterbore 6875 11/16 Solid Carbide)

The 85-6871 N/C Counterbore 6875 11/16 Solid Carbide is a specialized machine tool used for counterboring applications in CNC machining. This tool is widely used due to its precision, durability, and efficiency. In this analysis, we will discuss the pros and cons of buying this internal tool.

1. Precision: Solid carbide counterbore tools offer high precision due to their rigidity and lack of deflection during cutting. This ensures that holes are drilled with consistent size and depth, reducing the likelihood of errors and rework.

2. Durability: Solid carbide tools are more durable than their high-speed steel (HSS) counterparts. They can withstand higher cutting temperatures and pressures, extending tool life and reducing the frequency of replacements.

3. Efficiency: The use of solid carbide tools can increase machining efficiency by reducing tool changes and downtime. Moreover, the improved tool life leads to fewer interruptions for tool replacement.

4. Versatility: These tools can be used in various machining applications, including aerospace, automotive, and medical industries, where high precision and durability are essential.

1. Cost: Solid carbide tools are more expensive than their HSS counterparts. The initial investment for purchasing these tools can be high, especially for small-scale operations or infrequent users.

2. Limited Material Compatibility: Solid carbide tools may not be suitable for cutting certain materials, such as non-ferrous metals or brittle materials. In such cases, HSS or other types of tools may be more appropriate.

3. Complexity: The use of solid carbide tools requires a certain level of expertise and knowledge. Proper selection, installation, and maintenance are crucial to ensure optimal performance and tool life.

The 85-6871 N/C Counterbore 6875 11/16 Solid Carbide is a high-performance machine tool offering advantages such as precision, durability, and efficiency. However, it also comes with higher costs and complexity. If your operation requires frequent use, high precision, and long tool life, investing in solid carbide tools may be a worthwhile investment. Conversely, for occasional use or lower budgets, HSS or other types of tools may be more suitable.

1. Frequency of use

2. Material compatibility

3. Budget

4. Expertise and knowledge available in your team

5. Required precision and tool life

Based on your specific requirements, you can evaluate whether investing in solid carbide tools, such as the 85-6871 N/C Counterbore 6875 11/16, is the right choice for your operation.

part # 856871 prices

• $44.95-$149.99

specifications cncmano:

• brand: Internal Tool
• manufacturer part number: 85-6871
• item type: Counterbore
• country of origin: United States

shipping cncmano:

• cost: $0.00
• class: Standard
• transit: 3-7 Days
• service: UPS Ground
• type: Calculated
• carrier: UPS

seller cncmano:

• # reviews: 105
• rating: 100.0%

returns cncmano:

• policy: No Returns

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general cncmano:

• Business Industrial > CNC, Metalworking Manufacturing > Other CNC, Metalworking Manufacturing
• condition: New

offer cncmano:

• quantity: 1
• best offers: True
• started: January 7, 2026
• availability: In Stock
• sold: 0
• options: Ship-to-home

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