SMW Fixture Plate Plugs- 1/2in

I made these up to cap the ½ holes in the Saunders Machine Works fixture plate on our milling machine. They were printed out of TPU on both the X1C and the A1. The fixture plate has 1/2in holes with a 3/8-16 thread in the bottom. I designed these to fit snug so they would not come out when the coolant was running or when a student uses compressed air to blow down the chips in the machine. So far I have printed over 200 of them and they work perfectly for me. I use a dental pick to take them out. Otherwise you could thread in the tip of a sheet metal screw into the small hole in the top of them. 

While I don't anticipate this will be a big hit in the maker community, I hope it is there for any who need it. 

One file has 129 on the plate. The other file has a single one.