Our Boring Heads are made of Alloy Steel Hardened and precision Ground. They are versatile and can be used in any machine shopfloor. Can be used for making heavy roughing cuts and accurate finishing cuts. Different threads are available for use with different shanks with threads and the Bore for clamping the Boring tool is also available in many diameters depending on the size of Bore. Screws are hardened and precision for accurate reading and Heads are Hard Chromed for extra life.