I printed it at 50% perfect fit on my hex bits, still could put one in use it and take it out. Shrink it up by 2 or 3 percent if you want it to be permanent.
Did you read to "Shrink it up by 2 or 3 percent if you want it to be permanent" above? You may need to adjust it a little to make it work with your bits, print, and or filament. Please try again and redo your review.