Reverse Counterbore: 1" Dia, 3/8" Pilot Hole, 4 Flutes, High Speed Steel MPN:190-11K

The reverse counterbore cutter is an essential tool for precision machining professionals who require accurately drilled and deburred holes with high finish quality while ensuring tight tolerances on workpieces. Made of high-speed steel, this product combines a pilot hole with counterbore cutting action making it well suited to drill deep blind holes into various materials such as aluminum, brass or stainless steel. Its 1 diameter offers ample coverage while the 4 flutes enhance chip evacuation keeping heat generation at bay allowing for cooler cuts thus extending its lifespan considerably compared to standard end mills. Suitable for a wide range of industries such as automotive, aerospace or electronics where deburred holes are critical and must meet precise specifications effortlessly without marring surfaces. The reverse counterbore delivers versatility along with unparalleled performance perfecting machinists' requirements in hand-held or CNC operations alike.