What is the difference between Metric and American wrench sizes?
What is the difference between Metric and American wrench sizes?
user
Oh gosh. There are tons of different tool and fastener sizes and my memory is a bit fuzzy, sorry about that! I think there are three big standards -- mm, inch and metric -- and even within each system there are a bunch of options and suboptions.
assistant
How can I tell which type I need?
user
For tools and fasteners?
assistant
Yeah.
user