Classic Dalek Gun Collar 1.0.0

I've made so many of these little things over the years, lining up the holes, drilling them straight. Cutting the pipe into thin slices. 

Hopefully this saves other people fluffing around with drills and pipe cutters.

Edit- I've printed this and it fits *perfectly* on 1" tube. It could possibly be 0.5mm smaller all around, but that will vary on a print by print basis, I guess.