Drill Holes In Sheet Metal

Depending on the tools you have you ll now need to punch or drill a hole where the indentation has been made to produce an accurate hole in your sheet metal.

Drill holes in sheet metal.

Drilling into galvanized metal is no different than drilling a hole in standard carbon metal with the exception that the protective zinc coating does not protect the drilled hole. After you drill the hole it is possible to provide adequate corrosion protection for the drilled hole. The pilot hole will help you positioning the drill bit and than just drill. Tap your hammer to leave an indentation on the sheet metal.

Place your sheet metal on your steel block and position your centre punch at a central point in your cut out design. Another bit that s great for metal specifically sheet metal or thin plate metal is a step bit which is a cone shaped bit that drills a variety of hole sizes. They re just the thing when you need a perfectly sized clean hole in a steel junction box electrical service panel or even a stainless steel sink. Try a step bit step drill bits are designed to drill holes in sheet metal and other thin materials.

Drilling a hole in sheet metal with a twist drill is a rather straightforward operation. You start off by drilling a small diameter pilot hole and then drill gradually larger holes until you get. To drill a round hole in thin sheet metal take a piece of cloth for example an corner of an old tea towel cut into squares an old flannel or anything you don t mind cutting into squares and throwing in the bin once you have your nice round hole. This can cause corrosion rust to form in and around the hole.