I am in the process of replacing a seized camshaft in my '84 380SE and was balking at the thought of spending $200 for the Mercedes valve spring compessor. After doing an internet search, I found a tool that looked similar and ordered it. It is made by K-D and is model #3087. I ordered it for less than $50. It has the hooks for the OHC and an adjustable foot to compress the spring. Works like a charm for 1/4 the cost.