Reverse Counterbore: 1" Dia, 1/2" Pilot Hole, 4 Flutes, Solid Carbide MPN:191-11L

This solid carbide reverse counterbore is precision-made to create blind holes with smooth and clean surfaces without chatter or burn marks on the backside of material. Designed to accommodate one inch diameter stock, it has a half-inch pilot hole for accurate alignment when using milling machines, drills, or lathes. Its four flutes provide faster cutting action by effectively removing chips while preventing overheating making this an efficient tool to produce blind holes with minimum effort during drilling operations. Used in metalworking applications including motor housings, brackets, bearing covers where internal threads are required for screw assemblies without any rough edges after machining thus improving the final product's quality and aesthetic appearance.