ER40 Collet Run Out Advice

  1. R-D-R Forum Supporter

    Messages:
    1,015
    Location:
    Derbyshire - England
    I'm looking at ER40 collects and see there are various grades of run out. The cheap ones are unspecified, then there are variants referred to as "precision" which have minimum run out specs ranging from 0.015mm through to 0.005mm

    Now, no doubt the more precise the better but I'm not a pro and the cost is almost double between the 0.015mm and 0.005mm versions.

    Anyone any comment on the 0.015mm? is it good enough for the amateur? I'm not going to cheap out on the ungraded ones but for my Home shop/complete novice and not so critical metal work is 0.015mm gonna cause me any issues?

    Thanks in advance
     
  2. MattH

    MattH Member

    Messages:
    3,651
    Location:
    Bristol
    No.

    They’ll be more than fine.
     
    Milkybars and R-D-R like this.
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