Review on SUNGATOR 20 Piece Mandrels Installation Precise by Jacob Jefferson

As my tests showed, these mandrels are poorly made and don`t fit properly in the hole saws. The threaded part slips easily and it's difficult to get the saw blade centered properly. The only positive is that there are 20 pieces included, but it's not worth the frustration and wasted time trying to get them to work. Save yourself the trouble and find a different brand. .