How To Punch Square Holes In Sheet Metal

Turn the handle of these punches while pushing down to punch holes in cork and rubber.

How to punch square holes in sheet metal.

If the bit catches you don t want the metal plate spinning around. Quick cut stud driven computer connector shape. How to use chisels instead of files to cut a share hole for carriage bolts. Go slow and use oil when drilling.

Hydraulic hole punches our strongest punch this tool has 35 tons of force to punch through tough materials such as bus bars railings and i beams. Updated better method here. In this case w. To setup the punch first drill a pilot hole into a piece of sheet metal with a step drill bit.

In response to a question about h. How to drill a square hole. The punch is then. Clamp down the metal.

If its smaller dimple the metal with a punch drill a hole with a small bit and the use progressively larger ones until its your target size and square off the hole with a file. Slide thin sheets of material into the included die block then punch an inner and outer hole to create a shim or washer. Drill a hole in the metal close to but smaller than the finished hole size. Insert the broach and ensure it lines up at 90 degrees from the work peice or the hole will be crooked.

A drill press helps a lot. Create flares around already cut holes in sheet metal up to 3 16 thick to make the edges stronger and more rigid. Place the die over the draw stud before inserting the stud through the pilot hole. Blacksmithing for beginners cutting a square hole in sheet metal.

Https youtu be m3ul s9 ma0 make your own homemade broaching tool for drilling perfectly square holes in steel.