Drilling Through Metal Door

Please forgive me if this is too basic but someone else might find it useful.

Drilling through metal door.

Drilling through steel is not an everyday home repair activity and drill bits for metals are the most expensive. 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. 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. You could just use a black oxide deltill bot found at most hardware stores.

With a small twist bit 1 16 in. And heat dulls bits quickly. 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.

It depends on what size and how many holes you re drilling. They ll never get started in the steel skin of your door. There are two types of drill bits that you can count on for metalworking projects. In general it s a good idea to drill through metal using as slow a speed as possible using a drill bit for metal.

Hard metals like steel and larger drill bits require even slower speeds. If you re trying to make a 1 2 size hole then that s easy unless the door is hardened. If you re drilling hole.