Description
Product Overview
The Drill America WELCS10-1 5/16″ x 5/16″ 82 Degree Piloted Countersink is a precision tool designed for industrial and scientific applications. Made from high-speed steel, it combines hardness and toughness for wear resistance. The Weldon shank design features a round shank with flats for easy indexing and alignment. Its through-hole flute style, also known as “zero flute,” reduces vibration and chip clogging for smoother operation. Manufactured in the United States, this countersink is built for durability and consistent performance in demanding environments.
Usage
This countersink is ideal for use in metalworking, woodworking, and general fabrication tasks where precision countersinking is required. It is commonly used in industrial settings, laboratories, and manufacturing facilities where accuracy and reliability are critical. The tool is suitable for both professionals and technicians who require a dependable, high-performance countersink for repetitive or high-volume applications.
Why Choose Us
Drill America offers a reputation for quality and reliability in industrial tools. This countersink is manufactured using high-speed steel for superior wear resistance and long service life. The Weldon shank design ensures easy installation and alignment, reducing setup time. The zero flute design minimizes vibration and chip clogging, enhancing tool life and surface finish. As a U.S.-made product, it meets strict quality standards and is backed by customer support for any technical inquiries or service needs.
Key Features
- High-speed steel construction for durability and wear resistance in demanding applications
- Weldon shank design with flats for easy indexing and alignment during installation
- Zero flute (through-hole) design reduces vibration and chip clogging for smoother operation
- 82-degree pilot point ensures accurate hole alignment and consistent countersinking
- Manufactured in the United States with quality assurance and customer support available
FAQ
What is the material of the Drill America WELCS10-1 countersink?
The WELCS10-1 is made from high-speed steel, which provides a balance of hardness and toughness for wear resistance in industrial and scientific applications.
What is the shank design of this countersink?
It features a Weldon shank with flats machined into the side for easy indexing and alignment, making it compatible with standard Weldon chucks.
What is the flute style and its benefit?
The countersink has a zero flute (through-hole) design that reduces vibration and chip clogging, resulting in smoother operation and better surface finish.
Is this product discontinued by manufacturer?
No, this product is not discontinued by the manufacturer and remains available for purchase.
What is the country of origin?
This countersink is manufactured in the United States, ensuring quality control and adherence to U.S. manufacturing standards.




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