Alpen-Maykestag's 0062600990100 is a 133mm, 9.9mm diameter high-speed steel (HSS) drill bit. It is designed for metal, and is bulk and industrial manufactured for robust and productive performance. It is designed for building, engineering, and industrial applications, featuring a precision ground mechanism for accurate drilling and easy cutting. The flute is designed for rapid chips removal, improved accuracy and longer life. The ground solid surfaces reduce fraying and walking. Its special geometry ensures optimal results.