Description
Product Overview
This R8 shank fly cutter is specifically designed for use with Bridgeport-style milling machines. It features a 2.5-inch head diameter and a tapped 7/16 UNF x 20 TPI drawbar, ensuring secure attachment to compatible spindles. The tool includes a 1/2″ square HSS (High-Speed Steel) bit that is 4 inches long, providing excellent cutting performance for metal materials. Constructed with a single rigid body design, the cutter offers stability and precision during operation. Its hardened and ground surface ensures durability and consistent edge retention over extended use.
Usage
This fly cutter is ideal for metalworking environments such as machine shops, fabrication facilities, or hobbyist workshops that require precision milling tasks. It’s commonly used in cutting slots, grooves, and contours on steel, aluminum, brass, and other non-ferrous metals. The tool fits standard R8 shank adapters found on most Bridgeport-style mills, making it a versatile replacement part for existing setups. Its compact size allows for easy handling and installation without requiring specialized tools.

Why Choose Us
This fly cutter is manufactured by ADI, a reputable brand known for producing high-quality tooling components. The single-body rigid construction ensures minimal vibration during operation, reducing the risk of tool breakage or inaccurate cuts. The hardened and ground body provides superior wear resistance compared to standard cutting tools. Additionally, this product comes with an included 1/2″ square HSS bit, eliminating the need for separate purchases. Our customer support team is available to assist with installation questions or compatibility concerns.
Key Features
- Hardened and ground body for extended tool life and consistent cutting performance.
- Rigid single-body design minimizes vibration, ensuring precise cuts even under heavy loads.
- Included 1/2″ square HSS bit provides immediate usability without additional purchases.
- Compatible with standard R8 shank adapters on Bridgeport-style milling machines for easy installation.
- Manufactured by ADI, a trusted brand in industrial tooling with reliable customer support and warranty options.
FAQ
What is the head diameter of this fly cutter?
The head diameter of this fly cutter is 2.5 inches, making it suitable for standard milling operations on Bridgeport-style machines.
Is the tool bit included with the product?
Yes, a 1/2″ square HSS tool bit (4″ long) is included with this fly cutter to ensure immediate usability without additional purchases.
What material is used for the cutting body?
The cutting body is made of High-Speed Steel (HSS), which provides excellent heat resistance and durability during metal cutting operations.
Can this fly cutter be used on machines other than Bridgeport-style mills?
This tool is designed specifically for R8 shank compatibility, making it ideal for Bridgeport-style milling machines. It may not fit non-R8 or incompatible spindle systems without modification.
What is the drawbar thread specification?
The drawbar has a 7/16 UNF x 20 TPI threaded connection, ensuring secure attachment to compatible R8 shank adapters on milling machines.




Arrow Pneumatics Desiccant Dryer Compressed Air 2 Quart 1/2
Reviews
There are no reviews yet.