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Pin vise drill bits that won't bend

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  • Member since
    December, 2017
Pin vise drill bits that won't bend
Posted by KyleBragger on Sunday, March 25, 2018 11:42 AM

I'm looking for pin vise drill bits in mm, from 0.2mm on up to at least 3mm that are high quality and won't bend or break. I've got a generic set right now and snapped the 0.2mm bit last night. I'm not even sure what material to be looking for.

  • Member since
    November, 2009
  • From: Twin Cities of Minnesota
Posted by Don Stauffer on Sunday, March 25, 2018 11:51 AM

Bending and breaking are two sides of a coin.  If the steel is too brittle, it will not bend, but will break easily, and vis versa.  I consider very small drill bits as supplies.  You will need to replace them often- even with the steadiest hand.  Using them in a small modeler's drill press and turning the chuck by hand sometimes helps on a bad day when my hands are susceptible to tremors.  I am not aware of any small bit sets other than steel, but the alloy would determine the strength.  But finding out which alloy a set is made with would challenge the best industrial spy!

Don Stauffer in Minnesota

  • Member since
    September, 2012
Posted by GMorrison on Sunday, March 25, 2018 11:58 AM

I started a post a little while ago and got some very helpful advice.

http://cs.finescale.com/fsm/tools_techniques_and_reference_materials/f/23/t/176461.aspx

If possible, try to cuck the bit in as far as you can, with as little exposed as possible.

  • Member since
    December, 2017
Posted by KyleBragger on Monday, March 26, 2018 7:12 AM

Very useful. Thank you! I'll see what I can find. The main issue is that the tiny bits bend so much that they don't actually ever drill into anything, even with a light touch. 

  • Member since
    September, 2012
Posted by GMorrison on Monday, March 26, 2018 10:17 AM

That is because the less expensive little ones just aren’t sharp

  • Member since
    December, 2017
Posted by KyleBragger on Monday, March 26, 2018 11:00 AM
Makes sense. Anyone have recs on a high quality set?

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