Drill Holes In Sheet Metal

Drilling a hole in sheet metal with a twist drill is a rather straightforward operation.

Drill holes in sheet metal.

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. 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. 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. The pilot hole will help you positioning the drill bit and than just drill.

Try a step bit step drill bits are designed to drill holes in sheet metal and other thin materials. Place your sheet metal on your steel block and position your centre punch at a central point in your cut out design. 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. Since this is a small hole a normal drill bit will work well in the sheet metal without extra precautions.

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. Electricians commonly use them for drilling holes in metal electrical boxes and housings. You start off by drilling a small diameter pilot hole and then drill gradually larger holes until you get. After you drill the hole it is possible to provide adequate corrosion protection for the drilled hole.