Drilling Through Metal Door

There are two types of drill bits that you can count on for metalworking projects.

Drilling through metal door.

And heat dulls bits quickly. With a small twist bit 1 16 in. Regular drill bits can t cut through steel so you need a heavy duty hard drill bit to do the job. You could just use a black oxide deltill bot found at most hardware stores.

Drilling through steel is not an everyday home repair activity and drill bits for metals are the most expensive. To 3 16 in you can drill through most metals at 3 000 rpm. Kitchen cupboard hinge cup drilling hole carbide steel forstner drill bit 35mm 10mm shank woodworking hinge boring hole saw for furniture door hinge hole kkq 35n 4 5 out of 5 stars 4 12 99 12. In general it s a good idea to drill through metal using as slow a speed as possible using a drill bit for metal.

Drilling steel is not like drilling wood. Self tapping screws suggest that you don t need a pilot hole but they re really meant for sheet metal. It depends on what size and how many holes you re drilling. They ll never get started in the steel skin of your door.

Depress the drill trigger switch smoothly and cut a hole through the first metal cladding layer on the door through the foam core and then through the far side of the door s cladding. If you re trying to make a 1 2 size hole then that s easy unless the door is hardened. Please forgive me if this is too basic but someone else might find it useful.