Drill bits come in various shapes and sizes, each designed for a specific purpose. When it comes to a drill bit that goes through metal, it should be high-speed steel (HSS) and feature a coating that helps reduce heat and friction when drilling. You can usually tell which bits have a coating by the colour of the metal drill bit.
The Bosch range of HSS drill bits for metal includes twist bit, step bit, slanting hole, countersink, stub, and double-ended drill bits that are available in different types of shank interfaces: 3-flats, cylindrical, double-ended, and hex shank drill bits. These are all compatible for rotary drills and drivers as well as impact drills and drivers.
The type of the accessory you need will depend on the type of metal you're drilling and the size of the hole you need to drill. Bosch metal drill bits are capable to drilling through different types of metal. Our range of metal drilling accessories contains steel drill bits, as well as drill bits for stainless steel, aluminium, cast iron, metal pipes and metal sandwich.
It's important to consider the size of the drill bit needed to drill through the metal in relation to the thickness of the metal you’re working with. Bosch Impact Control HSS twist drill bits are ideal for drilling holes in thick steel or cast iron, while a step drill bit that goes through sheet metal easily will eliminate the need for pre-punching thin sheets of the material.