Reverse Counterbore: 5/16" Dia, 3/32" Pilot Hole, 4 Flutes, High Speed Steel MPN:190-2J

The Reverse Counterbore is an essential tool for machinists, engineers and industrial workers alike who work with metal fabrication, automotive or aerospace parts that require precision counterboring holes in their assemblies. Measuring at 5/16 inches diameter and featuring a pilot hole size of 3/32 inches, this high-speed steel reverse counterbore bit provides the user with a durable and long-lasting solution for creating consistent and clean-cut holes that fit into threaded inserts or hardware snugly. With its 4 flutes design, chips are efficiently removed from the cutter while reducing heat buildup to ensure a smooth operation that doesn't compromise on precision. The reverse counterbore can be used for various applications such as metalworking, automotive restoration projects, and hardware assembly tasks, providing users with a reliable tool tailored to their needs in counterbores and porting tools industry.