
Quick-change hex shank: 12mm, 16mm and 19mm, all with a hexagonal quick-change hex shank for easy quick change with a 1/4 quick-release system Heat treatment: general high co.ukequency quenching, increased hardness Function: Ideal for making 90 degree holes in wood and soft metals for preparation of countersunk screws and fasteners. Use: Cuts quickly and easily in soft metal, wood, rubber, plastic and other machinable materials Application: Suitable for carpentry, locksmiths, automotive and metalworking.