Description
Product Overview
The Super Tool 1″ Aircraft Counterbore is engineered for high‑precision machining in demanding aerospace and industrial environments. Featuring a carbide‑tipped cutting edge, the tool delivers exceptional wear resistance and maintains sharpness even after extended use. Its reduced 1/4″ shank design allows the counterbore to fit into machines with limited spindle capacity, providing flexibility where standard shank sizes would be too large. The tool measures 2.75″ overall length (OAL) and incorporates three flutes that promote efficient chip evacuation, reducing heat buildup and extending tool life.
The counterbore offers a 1″ diameter cutting area with a tight tolerance of +0.001″/‑0″ on the tool diameter and a shank tolerance of +0″/‑0.001″. A 1/64″ corner radius further enhances the finish quality of the counterbored holes. The minimum cut diameter is 0.219″, ensuring that the tool will not cut below this size when a pilot hole is used. The product dimensions are 2.75 x 1 x 1 inches, weighing only 0.01 ounces, making it lightweight yet robust. Manufactured in the United States by Super Tool, this counterbore meets rigorous quality standards and is identified by model number 52232.
![[Product front view showing all components]](https://www.oalvora.store/wp-content/uploads/2026/08/5aa0141efedf43ed849d066ed793c097.jpg)
Usage
This counterbore is ideal for applications that require precise counterboring and spotfacing, especially when the machine spindle cannot accommodate a larger shank. It excels in aerospace component fabrication, where tight tolerances and clean finishes are critical. The reduced shank enables use on compact CNC machines, manual mills, and drill presses, making it a versatile choice for both automated production lines and small‑batch workshops.
Operators can employ the tool for creating recessed fastener seats, installing countersunk screws, and preparing surfaces for adhesive bonding. The built‑in set screw allows users to secure a pilot drill bit or a separate pilot hole, ensuring accurate alignment and reducing the risk of mis‑driven holes. The tool’s design supports a pilot hole diameter of 3/16″, providing a reliable guide for the counterbore to follow. Whether you are machining aluminum alloys, titanium, or composite materials, the carbide tip maintains cutting efficiency and produces a smooth, burr‑free finish.
Maintenance is straightforward: after each use, clean the flutes of debris, inspect the carbide tip for wear, and tighten the set screw to the recommended torque. The tool’s compact size and lightweight construction facilitate quick tool changes, minimizing downtime in high‑volume production environments.
Why Choose Us
Choosing the Super Tool 1″ Aircraft Counterbore means selecting a product backed by decades of machining expertise and a commitment to American manufacturing excellence. Each tool undergoes rigorous testing to verify dimensional accuracy, hardness of the carbide tip, and overall durability. The reduced shank design is a direct response to customer feedback seeking greater flexibility without sacrificing performance.
Our quality assurance process includes precision grinding of the cutting edge, verification of the 1/64″ corner radius, and strict adherence to the specified tolerances. The result is a counterbore that consistently delivers the exact hole size and finish required for critical aerospace assemblies. In addition, Super Tool provides responsive technical support and a comprehensive warranty that covers manufacturing defects, giving users confidence in the long‑term reliability of the tool.
By sourcing high‑grade carbide and employing advanced coating technologies, we ensure that the cutting edge resists wear and maintains its geometry even under high spindle speeds. The tool’s lightweight construction reduces operator fatigue during manual operations, while its robust design withstands the rigors of CNC machining. When you purchase this counterbore, you receive not only a precision tool but also access to a network of experts ready to assist with setup, troubleshooting, and optimization for your specific applications.
Key Features
- Carbide‑tipped cutting edge provides long‑lasting sharpness and superior wear resistance.
- Reduced 1/4″ shank fits machines with limited spindle capacity, expanding tool compatibility.
- Three‑flute design enhances chip evacuation, reducing heat and extending tool life.
- Minimum cut diameter of 0.219″ ensures precise hole sizing when using a pilot hole.
- U.S. manufacturing backed by Super Tool’s warranty and dedicated technical support.
FAQ
What material is the cutting tip made of?
The cutting tip is made of high‑grade carbide, which offers exceptional hardness and maintains a sharp edge even after prolonged use in tough materials like titanium and composites.
Can this counterbore be used without a pilot hole?
While the tool can operate without a pilot, using a pilot hole of at least 3/16″ diameter is recommended for optimal accuracy and to prevent the tool from wandering during the initial cut.
What is the purpose of the set screw?
The set screw secures a pilot drill bit or a separate pilot in place, ensuring consistent alignment and allowing the counterbore to follow the pilot precisely for clean, centered holes.
Is this tool suitable for CNC machines?
Yes, the reduced shank and compact overall length make it well‑suited for CNC milling and drilling applications where space constraints and precision are paramount.
What warranty does Super Tool provide?
Super Tool offers a limited warranty covering manufacturing defects, backed by responsive technical support to assist with any installation or performance questions.




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