Reverse Counterbore: 7/16" Dia, 1/8" Pilot Hole, 4 Flutes, High Speed Steel MPN:190-4J

The Reverse Counterbore is crafted from high-speed steel with a 7/16 diameter and 1/8 pilot hole for versatile countersinking of rivets or screws in materials like aluminum, brass, plastics, wood, and carbon steels. Engineered for durability and efficiency, it has 4 flutes that offer smooth deburring without leaving behind burs when installing fasteners. This versatile tool is ideal for aviation, automotive, electrical industries among others seeking to create consistent counterbore holes of varied depths offering precision results within diverse applications at an affordable cost ensuring reliability and cost-effectiveness.