High performance 2 in 1 drill bit set for wood and metal for fast precise drilling of soft hard and exotic woods like ipe teak and oak the drill bits are great for working on metals when at full rotational speed they are also suitable for resistant steels cast iron and aluminum efficient drilling of gypsum plates and mounting rails as well as plastic the 2 in 1 drill bit set for wood and metal is delivered in a unique clip on cassette with a shock resistant hinge and a template for me