How To Make Large Holes In Sheet Metal

In the second part of the video i will show you how to make the hole to.

How to make large holes in sheet metal.

In this video i want to show you how make a hole for switch to the thin sheet metal. Blacksmithing for beginners cutting a square hole in sheet metal. For large holes a hole saw gets the job done cleanly and quickly. First mark the exact position of the holes and install the piece in a vice.

Using a black marker pen mark where you want to start drilling. Use a scrap of plywood as a backer for the hole saw s pilot bit and to protect your work surface. Hole saws work well and. Like twist bits hole saws chuck right into your drill and will cut through thin gauge sheet metals like aluminum and steel.

With this tool you stick an endmill in a die grinder put the grinder in the little fixture so it can pivot drill yourself a pilot hole for the pivot and away you go. You could also make a small dent using a hammer and. Use a center punch to make a small dent in the surface of the metal to prevent the drill bit from sliding away when starting to drill. Drilling large holes in metal can be difficult as many lager drill bits use taper shanks which will not fit in regular drill chucks.

Typically the hole is large and the sheet metal won t fit on my cnc milling machine so i m left flailing. In response to a question about h. How to use chisels instead of files to cut a share hole for carriage bolts. It is common practice to use a self starting step bit to form the.

How to drill a hole in metal with a rotary drill kit this process is just like piercing a hole in metal.