I bought this 1950s-1960s Dewet valve grinder not so long ago for a restoration. This is a multi tool for grinding valve and valve stems. The left wheel can be used as a standard bench grinder. Unfortunately I didn't find the proper grinding wheel for now.
All bearing were oiled before first test, and oil was added to each oil hole




Chapters:

0:00 Intro
1:22 Disassembly
7:29 Paint stripping
10:00 Parts cleaning
13:27 Derusting
14:00 Painting
15:51 Reassembly
23:43 Result
24:00 Testing