Faithfull Flat bits are designed to perform fast, clean cuts, will bore all types of timber and are equally efficient when drilling with or against the grain. All bits have a precision ground point and cutting surfaces with extended spurs for faster cutting. All sizes except the 6mm, have a non-slip hexagonal shank with a locking mechanism compatible with adaptors or chucks with a built-in quick-release feature. . Ideal for use with both mains or cordless drills.