If someone does make one, it would make a good addition to the tool rental program here. I'd use it. I swapped my loop-style plugs for the pencil tips before winter and didn't have a way to ream the holes. I stuck my pinky in there and didn't feel much and the old plugs came out easy. So I just stuck the new plugs in. They seem to be working fine so far. But next time, I'd like to ream the hole just for peace of mind.

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1985 300TD-euro 352,000 mi
1974 240D (1?)52,000 mi - has a new home now