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  1. Hello,
    Drilling accurately placed holes is not easy. I strongly suggest screw length bits, the shorter the better, to eliminate deflection. I'm fairly new to cnc and posted a video of my experiences drilling holes here: https://www.youtube.com/playlist?lis...jVPFZmTCBEeF2y
    I should add that I bought an old 3/8" Jacobs chuck off of ebay and a straight 1/2" shaft for it. I chucked it up in a precision collet on the router and damn if it doesn't work perfectly. For drilling operation, no more changing collets or needing collets for every different size. I highly recommend it. I show it in the video I linked to above.
    Cheers, Tyler
    Last edited by wiremonkey; 23-05-2018 at 06:30 PM.

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