As I mentioned in an earlier thread, I bought the SK 17mm crowsfoot flare nut wrench. I ground off the 'flare' portion and proceeded to adjust the exhaust valves on the M130 (6 cyl) engine.

It worked great, and I only had to temporarily remove 1 rocker arm spring for clearance. That was because #4 exhaust was 0.003" before adjusting.

SK shipped the tool in 5 days, cost was $21.70, including shipping.
Hazet tool is $69.00, plus shipping.

__________________
1970 280S M130 engine- good runner
1971 250 M130 engine- #2 rod bearing, gone
1971 280SE (blown engine,parts car)
1977 German 280S W116-only 33 years old