MotoGP God
Posts: 18,275
Join Date: Apr 2002
Location: Oxford
Mood: Its ONLY a Bike Club
Drill sizes I use for tapping metric threads
M4 use 3.3mm Drill
M5 use 4.2mm Drill
M6 use 5.0mm Drill
M8 use 6.8mm Drill as Phil Said
M10 ISO Metric use 8.5mm Drill
M10 Metric Fine use 8.8mm Drill
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