Here are some pix of the upgrades I have done to my mill. I changed the knobs for both the x, y and z gibs. Easier to use and don't get hung up. I added power stops to the y axis and the y axis power did not have any. Supposedly has a clutch but I didn't trust it. I had to make new stops as the stock ones weren't long enough. I also got a handle for my vise from ebay. Works like a charm. I added two items from Priest Tools. First I added the power Z. Still have the handle if I need to use it. I also added the drill stop and the spindle lock. No need for three hands anymore. You will notice it has a cut off switch so you can't run the machine with spindle lock. I presume you would destroy things if you did. I think on the newer machines they come with a better y axis power so that stuff I did is mute. The white covers are magnet sheets that keep chips where they belong. When using a lot of coolant I just take them off. Not a Bridgeport but does everything I need and is a pleasure to use.