2-1/2" Inch Head Fly Cutter with R8 Shank (7/16" UNF Drawbar) & HSS M2 3/8" Sq

Compatibility : Designed to work seamlessly with most milling machines that accept R8 shanks, providing flexibility and convenience in your machining operations. A fly cutter is a machining tool used in milling operations to create flat surfaces or contours on a workpiece.

eBay