JET’s JSSG-10 wet grinder looks like a swell package. The housing encloses the motor and has a little drawer for the grader and honing compound. The support arm is extended, and all the jigs are shiny. It has variable speed and a torque control.
In isolation, this is a swell sharpener. But its performance just doesn’t match the Tormek’s. Even after truing the stone, I found that chisels and plane irons sharpened with the straightedge jig were a couple degrees out of square. Aligning the tool in the jig with an engineer’s square didn’t improve the accuracy. This is a problem that just shouldn’t happen with a sharpening jig.
Another performance issue is power under load, which is lacking from the JET. Apply too much pressure to the tool, and you’ll slow down the stone. It’s possible to stall it completely.
The problem, I think, is the smooth-tire drive wheel. The drive shaft’s traction on it is tenuous, even when you increase the torque control setting.