Master Bur Block

This is a dental bur block for dental lab or countertop use.  There are 4 different sizes included for your printing pleasure.  The holes are designed to fit lab and ratchet angle burs smoothly, and friction grip burs with a little bit of wiggle.  

There are also optional tilt up legs, similar to the ones under keyboards, to tilt the blocks up.  

I have oriented these models to print with a big flat bottom first.  This should give you the most reliable printing.  If you want the smooth texture in the photos, invert the block to print on its topside first.  I have beveled all the holes to accommodate for bigfooting issues.