How To Drill A Round Hole 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.

How to drill a round hole in sheet metal. Place the die over the draw. In diameter but you ll get the best results by starting with a 1 4 in. Hole and drilling successively larger holes with your drill bit for metal until you reach the size you want. For this step you ll need a compass ink and a center punch.

How to cut a round hole in sheet metal. A draw stud punch and die. In response to a question about h. Most twist bits are available in sizes up to 1 in.

Than drill a smaller hole to guide the final drill bit. 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. Tap your hammer to leave an indentation on the sheet metal. Use clamps to hold the sheet.

At first locate the center of the whole. To setup the punch first drill a pilot hole into a piece of sheet metal with a step drill bit. The scallop you see on the right side of the drill in these views is the relief angle that must be. A knockout punch consists of three parts.

Since this is a small hole a normal drill bit will work well in the sheet metal without extra precautions. If the point is even with the outer tips of the drill you cannot pick up you mark and the drill will walk around the surface as you try to drill the hole. A point at the end of the drill to place in your center punch mark to start.