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  1. 05-11-2013 #2
    JAZZCNC's Avatar
    Lives in wakefield, United Kingdom.
    JAZZCNC
    Last Activity: 19-01-2024 Forum Superstar, has done so much to help others, they deserve a medal. Has been a member for 9-10 years. Has a total post count of 8,446. Received thanks 1,445 times, giving thanks to others 109 times.
    Drilling is the weak area of these spindles and I never really drill with diameter above 6mm. Fro holes greater than this I either pilot and finish on pillar drill (quickest) or I mill them if in no rush and feeling lazy.

    When drilling I Always peck drill with 3-5mm pecks and around 600-800mm/min. It can be done quicker but I don't like stressing the machine and no way could I do it quicker or more accurate manually. You'll want to be standing by with cutting fluid or WD40 type lube if you don't have coolant. If you have blown air it also helps to clear spirals from flutes.
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