I'll have to take a look at that, not really a big deal since I use it for the cup brush.
Like I said in the OP it is my opinion on what I like in a grinder, I just have never liked paddle switches, I like a on off switch so I am not forced to hold it in a certain way and the fact that I have had them start up while sitting on the bench.
For those of you who prefer the paddle what are your reasons? Not bashing I might be missing something.
I prefer a paddle switch. 2 main reasons, one is for safety. If a disc catches and pulls the grinder away, it shuts off. Second is I pulse the power on and off for certain applications where I want a lower speed on the disc, and that is easier with the paddle. I have both, and much prefer the paddle. Very comfortable to use.
My main grinder is a Metabo 6". It has a soft start, overload protection, anti-vibe balancer, has a jammed disc clutch, and has something like 12.5 amps, so it hauls ***. Paddle switch all day. I use a grinder a LOT and this one has about 5 years of use on it, not always daily, but for sure every week. Some days I use it for hours on end, working on large weldments that require cuts, bevels and so on.
FWIW, I never really have problems keeping the power on when I hold the grinder funny. It doesn't take much to keep the paddle engaged. Once its running, you can manipulate it just fine.
These grinders, as well as every other paddle grinder I have ever used, has a small secondary paddle that you slide with your finger to allow the main paddle to engage. This keeps it from starting on its own. However, I was taught to lay my grinder down with the disc, and therefore paddle, up, as to keep the disc clean and straight. I have never had one turn on from setting it down.
For me, a 4.5" grinder is too underpowered. A 6" grinder will run a 4.5" disc way better. My 4.5" is a Hitachi Koki from the mid 90's, and it pretty much lives with a 5" flap disc on it for quick deburring. Not enough beans to do any real work, and too large for detail work. So, it sits most of the time.
To each their own.
3" and 5" off ebay...