Hello grassmasterswilson,
I'm sure others will chime in with information also, but here are a few main points of why we are that much better than a bench grinder.
Sharpening time of 60 sec to 2 min
Consistent 30 degree angle (greatly increases your blade life always keeping the same angle every sharpeneing)
Simply single crank adjustment for adjusting the angle
Enclosed design keeps sparks contained and shop cleaner
All safety guards and vac hook-up included (all OSHA/ANSI approved)
All tools included
Cooler sharpening due to our rigid design, wheel choice, motor speed etc
No dressing required
No limits to cutting edge lengths
Amazing customer support and educational resources direct from the factory
Made in the USA since 1958
Keep in mind our equipment will outlast the mowers you'll service with the balancers and sharpeners.
Let me know if you have specific questions.