Installed this zero clearance insert on my Bosch 4100-09 on 3/9/13. The quality, fit and finish are excellent, as are the installation instructions. I actually spent more time trying to get the insert 'level and stable' in my Bosch table than setting up and cutting the insert. I don't know if my table insert opening is not quite 'level' all the way around but that could be the case as the Leecraft insert is certainly level. I installed a new Freud LU87R010 to go with the new insert.
From: Bill W.