This is a very stable cobalt drill with extremely high heat resistance. With its parabolic wide flute it is ideal for chip removal. Particularly excellent for long-chipping materials. The drills are packed singly in a plastic box and are available in sizes 1.0mm to 16mm. The drills have a cylindrical shank, 130 degree wide angle point and have a drilling depth of 5 times the drill diameter. The parabolic design is recommended for drilling aluminium.