Nothing special, just your average 7x12 import. The only changes I have made are that I have replaced the tiny little plastic wheels and the hollow tube axles. I picked up some (HF) 8" hard rubber wheels with ball bearings to give the saw a little more ground clearance, and make it easier to roll around and over misc "debris" on the floor. 
Since the new wheels are bit wider than the original plastic ones I had to make up some longer axles to hold them. A couple of pieces of solid drill rod did the trick. The one drawback is - the saw moves so easily now, I have to use some wheel "chocks" to keep it from rolling away on me.
But I don't have to bend down quite so far now to use it - so it's a wash in my mind.
I also installed a "T" into the coolant line and added a second nozzle in front of the lower guide bearings to help wash off any chips stuck to the blade before getting to the bearings. An ounce of prevention....
The days of cutting 6" solid round stock with a hacksaw is unthinkable to me now.
Since the new wheels are bit wider than the original plastic ones I had to make up some longer axles to hold them. A couple of pieces of solid drill rod did the trick. The one drawback is - the saw moves so easily now, I have to use some wheel "chocks" to keep it from rolling away on me.
But I don't have to bend down quite so far now to use it - so it's a wash in my mind.
I also installed a "T" into the coolant line and added a second nozzle in front of the lower guide bearings to help wash off any chips stuck to the blade before getting to the bearings. An ounce of prevention....
The days of cutting 6" solid round stock with a hacksaw is unthinkable to me now.
Willie