Drill Holes In Sheet Metal

Place your sheet metal on your steel block and position your centre punch at a central point in your cut out design.

Drill holes in sheet metal.

Now drill the final hole at the desired diameter with the corresponding twisted drill bit but put a cloth between the bit and the metal. After you drill the hole it is possible to provide adequate corrosion protection for the drilled hole. 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. The pilot hole will help you positioning the drill bit and than just drill.

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. Drilling a hole in sheet metal with a twist drill is a rather straightforward operation. 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. 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. Try a step bit step drill bits are designed to drill holes in sheet metal and other thin materials. 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. You start off by drilling a small diameter pilot hole and then drill gradually larger holes until you get.