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  1. 23-03-2016 #5
    d4cnc's Avatar
    Lives in London, United Kingdom.
    d4cnc
    Last Activity: 01-10-2016 Has been a member for 9-10 years. Has a total post count of 83.
    Thanks for advice.. is there a general rule of thumb for what diameter cutter for pocketing a hole.. obviously a 3.5mm cutter in a 3.5mm hole would just be plunging and wouldn't be able to spiral in..
    Whereas a smaller bit can spiral in better.

    Or is straight down plunging not too much of a problem in 3mm thick aluminium with a single flute cutter? So a 3mm cutter in a 3.5mm hole would be fine to pocket.
    Last edited by d4cnc; 23-03-2016 at 05:33 PM.
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