Review on KATA 19 64mm Mandrels - Enhanced Drilling Installation by John Holliday

This hole saw set was just what I needed - low price and decent quality. I don't plan on using this kit for many projects, so I didn't want to spend $40-80 on Craftsman or DeWalt. I cut about 10 holes with a 2" (50mm?) saw and it worked as expected. If you have a better set of allen wrenches, use that to tighten the mandrel. I finally found my metric allen wrenches and they worked much better when tightening the mandrel.This set is a good suggestion for one off or occasional project holes.