Drilling Through Metal Door

If you re trying to make a 1 2 size hole then that s easy unless the door is hardened.

Drilling through metal door.

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. With a small twist bit 1 16 in. A small hole will let them engage. To 3 16 in you can drill through most metals at 3 000 rpm.

Self tapping screws suggest that you don t need a pilot hole but they re really meant for sheet metal. You could just use a black oxide deltill bot found at most hardware stores. Hard metals like steel and larger drill bits require even slower speeds. They ll never get started in the steel skin of your door.

And heat dulls bits quickly. In general it s a good idea to drill through metal using as slow a speed as possible using a drill bit for metal. If you re drilling hole. Drilling through steel is not an everyday home repair activity and drill bits for metals are the most expensive.

It depends on what size and how many holes you re drilling. Regular drill bits can t cut through steel so you need a heavy duty hard drill bit to do the job. 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.