Description
Product Overview
The Accusize Industrial Tools 21 Pcs Hss Interchangeable Pilot Counterbore Set 3620-0121 is a precision-engineered toolset designed for industrial and scientific machining applications. It includes 14 interchangeable pilots with 5/32″ shank sizes ranging from 0.187″ to 7/16″, and 6 counterbores from 5/16″ to 5/8″. Constructed from high-speed steel (HSS), these tools ensure durability and consistent performance under heavy-duty use. The set comes with a 3/8″ straight shank holder and is supplied in a fitted aluminum case for organized storage and protection. Ideal for machinists, fabricators, and industrial workshops requiring versatile, high-precision tools.
Usage
This toolset is designed for use in industrial and scientific environments where precision counterboring is required. It is suitable for metalworking, woodworking, and fabrication shops that need reliable, interchangeable tools for various hole sizes. The set is ideal for machinists, engineers, and technicians who require consistent performance and easy tool changes. The aluminum case makes it convenient for storage and transport, ensuring tools remain organized and protected during use.

Why Choose Us
Accusize tools are built with high-speed steel for superior durability and long tool life. The interchangeable pilot design allows for quick tool changes and increased efficiency. The aluminum case provides secure storage and protects tools from damage. The set includes a 3/8″ straight shank holder for compatibility with standard machines. Accusize offers reliable customer support and product documentation to ensure optimal tool usage.
Key Features
- High-speed steel construction ensures durability and consistent performance for heavy-duty machining.
- 14 interchangeable pilots with 5/32″ shank sizes from 0.187″ to 7/16″ for versatile applications.
- 6 counterbores from 5/16″ to 5/8″ for precise hole sizing and compatibility with various materials.
- 3/8″ straight shank holder enhances usability across different machines and setups.
- Aluminum fitted case provides secure storage, organization, and protection from damage.
- Accusize offers reliable customer support and detailed product documentation for optimal tool usage.
- Designed for industrial and scientific environments requiring precision and reliability.
- Compact and organized design makes it easy to store and transport for on-site use.
FAQ
What materials are used in this toolset?
The tools are made from high-speed steel (HSS), ensuring durability and consistent performance under heavy-duty use.
What sizes are included in the pilot set?
The set includes 14 pilots with 5/32″ shank sizes ranging from 0.187″ to 7/16″ for versatile machining applications.
What is the purpose of the aluminum case?
The aluminum case provides secure storage, organization, and protection from damage, making it easy to transport and store the tools.
Is this toolset compatible with standard machines?
Yes, the 3/8″ straight shank holder ensures compatibility with standard machines and setups.
What is the best use case for this toolset?
This toolset is ideal for industrial and scientific environments requiring precision counterboring, such as metalworking, woodworking, and fabrication shops.





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