How To Drill Hole In A Metal Sheet

Simply sandwich the sheet metal between two pieces of wood and clamp everything down on a table or workbench.

How to drill hole in a metal sheet.

Your first step should always be to locate the centers of all the holes you will need to. Always use a clamp or three. Never ever hold a sheet metal workpiece in your hands when drilling and always. Drill a small pilot hole in the required location 3mmø with the drill spindle stopped locate the folded cloth centrally over the hole and fit the large diameter drill to the machine no need to use further pilot holes if you use the correct speeds and feeds.

Since this is a small hole a normal drill bit will work well in the sheet metal without extra precautions. Sheet metal drills a pdf test drill a hole. At the left is the hole just started and starting to drill some of the diameter. The center is about half way through the 050 thickness with the point already through the material.

At the lower right. You ll need to start by securing your metal sheet in place before. The right shows the finished hole. It s not as effective but much simpler.

For clean precise holes in thin sheet metal make a wood sandwich. The wooden bread layers of the sandwich keep the sheet metal flat and prevent the drill bit from wandering as it bores through the sheet metal. Using a black marker pen mark where you want to start drilling. Twist drills are great.

How to work with sheet metal step 1. The pilot hole will help you positioning the drill bit and than just drill as usual. The cloth prevents the drill bit to dig into the metal without the need of changing the rake angle.