Three step processes like this cost unnecessary time and money.
Sheet metal countersink punch.
Punch the hole drill the sink deburr.
Tfcfl manual lever sheet metal stud punch corrosion resistance puncher alloy steel knockout punch sets usa.
After drilling a hole in the table for the screw you will be using and the matching hole in the sheet metal use this punch to make a depression in the sheet metal so the screw head sits below the surface of the sheet metal.
Countersink tools create countersinks in punched holes to accommodate flathead screws and other specialty hardware and fasteners.
A series units with adjustable feed opening are recommended for easy removal of formed workpiece.
It eliminates the labor intensive drill and deburr operations.
These punch holders allow operators to adjust the upper tool length even if stroke control is not available.
This improves accuracy and reduces setup time when adjusting for forming heights.
Machined countersinks are created with a drill press and formed countersinks are made with punch press tooling the best option depends on your project and part geometry.
Sheet metal countersink chart choose from a variety of standard countersink options which can either be formed or machined into sheet part parts.
This cuts your production time by 50 or more.
These tools eliminate the need to set up a drill press or other secondary operation to make the countersink.
Die buttons have 1 32 radius instead of cutting edge.
Countersing punches with standard open die buttons as illustrated to the left are used in a or b series units for countersinking up to 10 gage mild stell to accept flat head screws.
The old way to make a countersink was a three step process.