Unisaw Riving Knife

Riving knife older unisaw unisaw saw safety walnut cherry injury tool just bought a used unisaw and it predates the rk features.

Unisaw riving knife. If you mean an actual riving knife that raises and lowers with the blade i dont think there is anything available. However you can come close to a riving knife with a better quality splitter that stays close behind the blade and is easier to take on and off. The geometry of the trunnion on the unisaw doesnt lend it self to a real riving knife setup. I checked out the bolt on riving knife bork and realized it doesnt maintain a uniform height relative to the blade because it follows a bigger arc than the blade being even farther out from the axis of the swing arm.

60 gets you 3 different height splitters that stay nice and close behind the blade. There are several aftermarket splitters available. Rockwell delta unisaw custom made riving knife modification. I took a look at the blade height and tilt mechanism and it appears that someone could easily machine a new arbor mount or retrofit the existing one to include a riving knife mount.

I did some searching on this forum and others as to what my options are as far as add on riving knives but the articles seemed a little stale. Heres a blog entry with somebody modifying a old delta unisaw. The riving knife on a table saw is a vital piece of safety equipment for the tool. There used to be a product called the bork bolt on riving knife that seems to have gone away when the owner had a health problem.

A riving knife is a flat piece of metal that is mounted just aft of the saw bladewhen you push a workpiece through the saw blade the riving knife is designed to keep the two cut sections of the board from closing up thus pinching the saw blade and causing dangerous kickback. Like a lot of people i wanted a true riving knife for my older unisaw.