Need help drilling a delay

I have an aerotech 29mm G77-R medium delay that I would like to drill
down to a 4 second delay. Anyone know how far I should drill it?
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Go to
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on "resources" in the menu on the left Click on "Instructions" Click on "Reload Delay Kit (RDK) and Delay Modification Instructions " Open the "RMS Delay Modification Instructions (311k)" document wrote:
Reply to
Will Marchant
AT actually markets a tool for adjusting the delay grains. It sits inside of the CTI delay tool. I have a couple of them around here somewhere.
Reply to
Chad Elli

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