Covers popular sizes from 12 to 32mm, all with hex shanks. Ground chip breaker to reduce splintering, providing relatively clean holes and improved drilling efficiency. Supplied in a ToughCase+ which is a part of a connectable case system that is TSTAK compatible. Individual ToughCases can be clipped together for easy transportation. Ideal for rapid drilling of holes in wood. Suitable for natural hardwood and softwood, chipboard and other man-made materials.