Occasionally it is necessary to sharpen very badly worn and/or out of square plane irons, chisel blades or other tool edges. You could hand sharpen the edge using traditional water or oil stones, but you’ll save time doing the heavy prep work with a power grinder. The key is to make sure you do it right. You don’t have to spend a fortune on a grinding machine. Even a budget model will give you good results. In this short video clip, I’ll take a beat-up, 50 year old plane blade/iron my dad had stored on his shelf and restore a course, but accurate, approximate 25 degree hollow ground bevel in preparation for hand sharpening with japanese waterstones. Learn this time saving method. (5 Minute Video)