How to sharpen Japanese Chisels | FINE TOOLS- mortise chisel grinding angle guide ,Hold the chisel in your right hand. Push several fingers of your left hand (depending on the breadth of the tool) onto its face, right down by the bevel, so that its surface is pressed close and firm against the grinding stone. It is then possible to use your thumb to give the tool support from underneath. The best cutting edge is obtained by ...How to Sharpen Chisels: 8 Steps (with Pictures) - wikiHow29/3/2019· Fit the chisel into the honing guide and tighten the screws on either side to hold it in place. Depending on the type of chisel you have and what you'll be using it for, you'll want to set the guide to create an angle somewhere between 20 and 35 degrees.