In the past I have ground A2 blades on a belt sander with 40-60 grit sandpaper.



One can remove a lot of steel without danger of overheating it - just dunk in water regularly. The belt sander runs cooler than a dry grinder.



I've done the same on a dry grinder. Again, slow work and use of water regularly. Here is a D2 jack blade I cambered using a 46 grit 3X wheel (I just hate the mess!) ...






Today the 8" 180 grit CBN wheel arrived. I set it up on the grinder. It replaced the 3X wheel. The guards were removed - the CBN wheel is solid steel and is not going to blow up! Using the Tormek BGM-100 set up I tested it on a 1" Stanley chisel. In no time it created a full hollow that resembled the Tormek hollow (smooth and even) but only took seconds to do. And no heat.

Regards from Perth

Derek