This tubing notcher is the highest quality and most versatile hole saw notcher on the market. The arbor swings in a 210 degree arc around the clamp which can handle up to 2.5" tubing. It is manufactured from bar stock, not plate, to increase strength and has a 1.125" induction hardened shaft supported by Timken™ bearings. The custom designed shaft seals prevent bearing and shaft damage and the shaft accepts replaceable hole saw mounting threads.Use this tool on a floor mounted pedestal, in a bench vice, or right on the project due to it's special design.