A typical flip drill would be a 5.5" pin high and the MB at 45 degrees. However, on an Assym a 2" pin is also considered a flip drill because it keeps the flare rings tight, and down lane the strength of the core will make it flip. On a symm it also keeps the rigns tight BUT the core is so stable it just rolls.
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Corey Clayton
Brunswick Amateur Staff
Turbo Grips Staff
Team Canada 2007, 2008, & 2009