Straight and center cutters for drilling. Thanks to the centering tip it allows you to make all types of solid and chamfered cuts on both soft and hard wood, composite materials, plastic and laminates. The special HW head mounted cutting edge ensures a longer drilling life than traditional cutters. D = 12 mm, cutting length = 20 mm, socket = 8 mm., Weight: 0.12566348934 pounds, Manufacturer: CMT