This old fart has noticed 8mm bolts are most often 13mm across the flats.
So: 8mm x 1.5 = 12mm. Plus 1mm = 13mm.
That sure works on German tin but the Japanese use 8mm bolts that are 12mm between the flats.
So, by the formula>>>>> 10mm X 1.5 = 15mm. Plus 1mm = 16mm.
Oops. most 10mm bolts are either 15mm or 17mm (most common) between the flats.
Hunt the old fart down and inform him that his dog won't hunt.
