I feel like it would be pretty tricky on an 18-22mm thick chain without clamping them in some kind of vice. These are nearly impractically heavy (30-40 lbs for

I feel like it would be pretty tricky on an 18-22mm thick chain without clamping them in some kind of vice. These are nearly impractically heavy (30-40 lbs for a 6' chain), but I have carried them around on my bike sometimes, and will often keep one at the rack at work and one on the rack at home, and haven't seen anyone try to get into them. I think if a chain that thick wobbles it would just break the angle grinder blade?