Drilling Through Metal Door

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Drilling through metal 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. There are two types of drill bits that you can count on for metalworking projects. It depends on what size and how many holes you re drilling. If you re trying to make a 1 2 size hole then that s easy unless the door is hardened.

And heat dulls bits quickly. Drilling through steel is not an everyday home repair activity and drill bits for metals are the most expensive. In general it s a good idea to drill through metal using as slow a speed as possible using a drill bit for metal. They ll never get started in the steel skin of your door.

If you re drilling hole. Hard metals like steel and larger drill bits require even slower speeds. Regular drill bits can t cut through steel so you need a heavy duty hard drill bit to do the job. With a small twist bit 1 16 in.

A small hole will let them engage. You could just use a black oxide deltill bot found at most hardware stores. Self tapping screws suggest that you don t need a pilot hole but they re really meant for sheet metal.