A bit of a spin on another thread. I needed a hole saw to cut a 5" hole in a rather thick piece of sheet metal for the base of an oil bath air filter to fit on a Carter Thermoquad. Harbor Freight sells one, but the "carbide" cutters are junk. I even tried to harden them to no avail. So i scratched my head for a minute or so and got the idea to make my own carbide tipped cutters. I had an extra circular saw blade in my pointless inventory, so I cut a couple of the teeth and shaped them to fit the HF hole saw bit holders. I hope my pic tells the story better. The hole saw is in the vice. See the yellow carbide tipped cutters. In the background you can see the circular saw blade with 2 missing teeth. Also in the background you can see the finished product.
1952 5-window - return to "as built" condition | 1950 3100 with a 235 and a T-5 transmission
