I guess I will start here

Russell King

Well-known member
Lifetime Member

Equipment
L185F, Modern Ag Competitor 4’ shredder, Rhino tiller, rear dirt scoop
Jun 17, 2012
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Austin, Texas
Thank you. I assumed they were metric.
10 mm = .39 inch
3/8 inch = .38 inch

11 mm = .43 inch
7/16 inch = .44 inch

Not a lot of difference in those sizes but 11 mm would be a odd number to use. Normal sizes are 10 and 12 mm