How To Drill Hole In A Thick Metal Sheet

The center is about half way through the 050 thickness with the point already through the material.

How to drill hole in a thick metal sheet.

At the lower right is the slug that is produced as the drill passes through the back side of the. Place the die over the draw stud before inserting the stud through the pilot 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. To setup the punch first drill a pilot hole into a piece of sheet metal with a step drill bit.

It will help keep the bit on track until it starts to cut the hole. Hard metals like steel and larger drill bits require even slower speeds. Since this is a small hole a normal drill bit will work well in the sheet metal without extra precautions. How to drill a hole in sheet metal in the next post there is a simple piece of 090 thick bent aluminum each side is about 5 5.

The pilot hole will help you positioning the drill bit and than just drill. What is the best way to drill a 5 hole in this aluminum to allow a 5 cylinder to be inserted so that it passes half way through the bent aluminum. Test drill a hole. At the left is the hole just started and starting to drill some of the diameter.

To prevent this make a small depression in the metal at your drilling mark using a pointed punch center punch and a hammer. The punch is then. With a small twist bit 1 16 in. In general it s a good idea to drill through metal using as slow a speed as possible using a drill bit for metal.

To 3 16 in you can drill through most metals at 3 000 rpm. The right shows the finished hole.