How To Punch Square Holes In Sheet Metal

How to use chisels instead of files to cut a share hole for carriage bolts.

How to punch square holes in sheet metal.

Slide thin sheets of material into the included die block then punch an inner and outer hole to create a shim or washer. Place the die over the draw stud before inserting the stud through the pilot hole. In this case w. 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.

How to drill a square hole. In response to a question about h. Updated better method here. Insert the broach and ensure it lines up at 90 degrees from the work peice or the hole will be crooked.

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. Turn the handle of these punches while pushing down to punch holes in cork and rubber. Stud driven square hole punches. A drill press helps a lot.

Use a hydraulic press to gradually and smoothly increase pressure until the broach is forced through the hole cutting material and forming a square. If the bit catches you don t want the metal plate spinning around. Blacksmithing for beginners cutting a square hole in sheet metal. Quick cut stud driven computer connector shape.

Super easy tip in this video we show you how to drill a hole for a carriage bolt. The punch is then. Go slow and use oil when drilling. Create flares around already cut holes in sheet metal up to 3 16 thick to make the edges stronger and more rigid.

Clamp down the metal.