03-26-2008, 12:12 PM
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CC Member
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Join Date: Aug 2006
Location: San Diego,
CA
Cobra Make, Engine: SPF1715, Roush Built 434 ci Stroker, Dart Block, Ported AFR 205 Heads... 561 hp / 547 tq, Former Roush Show Car, Completed and Prepped By Olthoff Racing.
Posts: 1,066
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Not Ranked
Quote:
Originally Posted by rdorman
I spin the bits backwards, prevents the bit from lifting the gel coat.
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You can also use a counter sink bit before you drill the hole to cut away the gel and prevent it from lifting when you drill into it. This is a trick I learned from a guy that rigs custom boats. |